Παραπομπή APA

Sykes, G., & Skinner, F. A. (1971). Microbial aspects of pollution. Academic press.

Παραπομπή Chicago Style

Sykes, G., και F. A. Skinner. Microbial Aspects of Pollution. London: Academic press, 1971.

Παραπομπή MLA

Sykes, G., και F. A. Skinner. Microbial Aspects of Pollution. Academic press, 1971.