APA引文

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

芝加哥风格引文

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

MLA引文

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

警告：这些引文格式不一定是100％准确.