APA (7e ed.) Bronvermelding

SCHWITZGEBEL, R. K. Changing Human Behavior: Principles of planned intervention. McGraw-Hill Book Company.

Chicago (17e ed.) Bronvermelding

SCHWITZGEBEL, Ralph K. Changing Human Behavior: Principles of Planned Intervention. McGraw-Hill Book Company.

MLA (8e ed.) Bronvermelding

SCHWITZGEBEL, Ralph K. Changing Human Behavior: Principles of Planned Intervention. McGraw-Hill Book Company.

Let op: Deze citaties zijn niet altijd 100% accuraat.