Cita APA (7a ed.)

Sowerby, D. B. (1975). Main group elements: Groups IV and V. Butterworths ; University Park Press.

Cita Chicago Style (17a ed.)

Sowerby, D. B. Main Group Elements: Groups IV and V. London : Baltimore: Butterworths ; University Park Press, 1975.

Cita MLA (9a ed.)

Sowerby, D. B. Main Group Elements: Groups IV and V. Butterworths ; University Park Press, 1975.