APA Edition Citation

P J S Olney. (1979). International Zoo year book 1979 V.19. London.

Chicago Edition Citation

P J S Olney. International Zoo Year Book 1979 V.19. London, 1979.

MLA Edition Citation

P J S Olney. International Zoo Year Book 1979 V.19. London, 1979.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.