APA Edition Citation

P J S Olney. (1977). Ninteen seventry seven internation zoo yearbook.Vol.17. London.

Chicago Edition Citation

P J S Olney. Ninteen Seventry Seven Internation Zoo Yearbook.Vol.17. London, 1977.

MLA Edition Citation

P J S Olney. Ninteen Seventry Seven Internation Zoo Yearbook.Vol.17. London, 1977.

Warning: These citations may not always be 100% accurate.