APA引文

A W Norman & K Schaefer. (1977). Vitamin D: Biochemical, chemical and clinical aspects related to calcium metabolism. Berlin.

Chicago Edition Citation

A W Norman and K Schaefer. Vitamin D: Biochemical, Chemical and Clinical Aspects Related to Calcium Metabolism. Berlin, 1977.

MLA引文

A W Norman and K Schaefer. Vitamin D: Biochemical, Chemical and Clinical Aspects Related to Calcium Metabolism. Berlin, 1977.

警告：這些引文格式不一定是100％准確.