APA (7e ed.) Bronvermelding

Ladd, M. F. C. (1989). Symmetry in molecules and crystals. Ellis Horwood.

Chicago (17e ed.) Bronvermelding

Ladd, M. F. C. Symmetry in Molecules and Crystals. Chichester, West Sussex, England: Ellis Horwood, 1989.

MLA (9e ed.) Bronvermelding

Ladd, M. F. C. Symmetry in Molecules and Crystals. Ellis Horwood, 1989.