APA引文

Productivity Services International. (1971). Handbook of 100 new small industry schemes. Air conditioned.

Chicago Edition Citation

Productivity Services International. Handbook of 100 New Small Industry Schemes. Tardeo: Air conditioned, 1971.

MLA引文

Productivity Services International. Handbook of 100 New Small Industry Schemes. Air conditioned, 1971.

警告：這些引文格式不一定是100％准確.