Citazione Stile APA (7a Edizione)

BUTTLE, J. (1981). Chemistry, a unified approach. Butterworths.

Citazione stile Chigago Style (17a edizione)

BUTTLE, J.W. Chemistry, a Unified Approach. London: Butterworths, 1981.

Citatione MLA (9a ed.)

BUTTLE, J.W. Chemistry, a Unified Approach. Butterworths, 1981.