APA (7e ed.) Bronvermelding

Polan, E. U. (2007). Journey across the life span: Human development and health promotion (3rd ed.). F. A. Davis.

Chicago (17e ed.) Bronvermelding

Polan, Elaine U. Journey Across the Life Span: Human Development and Health Promotion. 3rd ed. Philadelphia: F. A. Davis, 2007.

MLA (9e ed.) Bronvermelding

Polan, Elaine U. Journey Across the Life Span: Human Development and Health Promotion. 3rd ed. F. A. Davis, 2007.