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Altmann, D. (1969). Harnen und Koten bei Säugetieren (Vol. 404). Wittenberg: Ziemsen.
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Zeeb K,. (1969). Verhaltensweisen beim Dülmener Primitivpferd. Hautpflege – Fortpflanzung – Erkunden und Meiden – Mimik und Ausdrucksbewegungen.
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Lanzetta, J. T., & Hannah, T. E. (1969). Reinforcing behavior of “naive” trainers. Journal of Personality and Social Psychology, 11(3), 245–252.
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Boray, J. C. (1969). Experimental fascioliasis in Australia. Adv Parasitol, 7, 95–210.
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Shalaby, A. M. (1969). Host-preference observations on Anopheles culicifacies (Diptera: Culicidae) in Gujarat State, India. Ann Entomol Soc Am, 62(6), 1270–1273.
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Hinde, R. A. (1969). Analyzing the roles of the partners in a behavioral interaction--mother-infant relations in rhesus macaques. Ann N Y Acad Sci, 159(3), 651–667.
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La Riviere, J. W. (1969). Ecology of yeasts in the kefir grain. Antonie Van Leeuwenhoek, 35, Suppl:D15–6.
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Raveling, D. G. (1969). Preflight and flight behaviour of Canada geese. Auk, 86, 671–681.
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Halford, G.S., & Halford, J. M.. (1969). Secondary reinforcement: signal or substitute reward? A preliminary investigation. Aus. J. Psychol, .
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Judge, N. G. (1969). Transport of horses. Aust Vet J, 45(10), 465–469.
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