APA (7e ed.) Bronvermelding

Arho, P. (1972). Skin thickness and collagen content in some endocrine, connective tissue and skin diseases: A roentgenographic and biochemical study.

Chicago (17e ed.) Bronvermelding

Arho, Pekka. Skin Thickness and Collagen Content in Some Endocrine, Connective Tissue and Skin Diseases: A Roentgenographic and Biochemical Study. Helsinki, 1972.

MLA (8e ed.) Bronvermelding

Arho, Pekka. Skin Thickness and Collagen Content in Some Endocrine, Connective Tissue and Skin Diseases: A Roentgenographic and Biochemical Study. 1972.