Παραπομπή APA

Stevens, M., & J.A. Covas. (1985). Extruder principles and operations. Chapman & Hall.

Παραπομπή Chicago Style

Stevens, M.J, και J.A. Covas. Extruder Principles and Operations. London: Chapman & Hall, 1985.

Παραπομπή MLA

Stevens, M.J, και J.A. Covas. Extruder Principles and Operations. Chapman & Hall, 1985.