| Bünning, E., & Moser, I. (1969). Interference of moonlight with the photoperiodic measurement of time by plants, and their adaptive reaction. Proceedings of the National Academy of Sciences, 62, 1018. |
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| Added by: Sarina 2010-02-10 17:10:51 |
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| Hamasaki, D. I., & Dodt, E. (1969). Light sensitivity of the lizard's epiphysis cerebri. European Journal of Physiology, 313(1), 19–29. |
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| Last edited by: Sarina 2012-11-28 16:22:09 |
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| Kauffeld, C. (1969). The effect of altitude, ultraviolet light, and humidity on captive reptiles. International Zoo Yearbook, 9, 8–9. |
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| Added by: Sarina 2010-09-13 15:05:21 |
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| Laszlo, J. (1969). Observations on two new artificial lights for reptile displays. International Zoo Yearbook, 9, 12–13. |
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| Last edited by: Sarina 2010-09-13 14:56:01 |
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| Logan, T. (1969). Experiments with grolux light and its effect on reptiles. International Zoo Yearbook, 9(1), 9–11. |
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| Added by: Sarina 2010-09-13 15:00:35 |
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| Pawley, R. (1969). Observations on the reaction of the mata mata turtle chelys fimbriata to ultra-violet radiation. International Zoo Yearbook, 9, 31–32. |
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| Last edited by: Sarina 2010-09-13 14:53:14 |
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| Taylor, D. H., & Ferguson, D. E. (1969). Solar cues and shoreline learning in the southern cricket frog, acris gryllus. Herpetologica, 25(2), 147–149. |
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| Added by: Sarina 2009-04-15 18:09:00 |
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