Παραπομπή APA

Herrick, E. C. (1979). Unit Process Guide to Organic Chemical Industries. Ann Arbor.

Παραπομπή Chicago Style

Herrick, Elbert C. Unit Process Guide to Organic Chemical Industries. Mich: Ann Arbor, 1979.

Παραπομπή MLA

Herrick, Elbert C. Unit Process Guide to Organic Chemical Industries. Ann Arbor, 1979.