Παραπομπή APA

Neumann, H. (1981). Composition and properties of petroleum. Halsted Press.

Παραπομπή Chicago Style

Neumann, Hans-Joachim. Composition and Properties of Petroleum. New York: Halsted Press, 1981.

Παραπομπή MLA

Neumann, Hans-Joachim. Composition and Properties of Petroleum. Halsted Press, 1981.