MLA

Van der Velde, Wouter Jacob. Smoking In Pregnancy : a Clinical and Histological Exploration. Amsterdam: s.n., 1985.

APA

Van der Velde, W. Jacob. (1985). Smoking in pregnancy : a clinical and histological exploration. Amsterdam: s.n.

Chicago

Van der Velde, Wouter Jacob Smoking In Pregnancy: A Clinical and Histological Exploration. Amsterdam: s.n., 1985.