Παραπομπή APA

Cartmell, E., & fowles, G. W. A. (1977). Valency and molecular structure (Ed.4 /.).

Παραπομπή Chicago Style

Cartmell, E., και G W A. fowles. Valency and Molecular Structure. Ed.4 /. London : ELBS, 1977.

Παραπομπή MLA

Cartmell, E., και G W A. fowles. Valency and Molecular Structure. Ed.4 /. 1977.