APA ציטוט

Broadhurst, A. D. (1977). Tryptophan and rheumatic diseases.

Citação norma Chicago

Broadhurst, A D. Tryptophan and Rheumatic Diseases. 1977.

ציטוט MLA

Broadhurst, A D. Tryptophan and Rheumatic Diseases. 1977.