APA (7th ed.) Citation

Orr, J. (1981). Hong Kong nudibranchs. Urban Council.

Chicago Style (17th ed.) Citation

Orr, John. Hong Kong Nudibranchs. Hong Kong: Urban Council, 1981.

MLA (8th ed.) Citation

Orr, John. Hong Kong Nudibranchs. Urban Council, 1981.

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