APA (7e ed.) Bronvermelding

- & KLEVINS, C. [. (1976). Materials and methods: In continuing educations. Klevens Pub.

Chicago (17e ed.) Bronvermelding

- en Chester [Ed.] KLEVINS. Materials and Methods: In Continuing Educations. New York: Klevens Pub, 1976.

MLA (9e ed.) Bronvermelding

- en Chester [Ed.] KLEVINS. Materials and Methods: In Continuing Educations. Klevens Pub, 1976.