Παραπομπή APA

Coulson, C. A. (1961). Valence (2d ed.). Oxford University Press.

Παραπομπή Chicago Style

Coulson, C. A. Valence. 2d ed. [London]: Oxford University Press, 1961.

Παραπομπή MLA

Coulson, C. A. Valence. 2d ed. Oxford University Press, 1961.