APA (7e ed.) Bronvermelding

Turnbull, H. R., & Turnbull, A. P. (1985). Parents speak out: Then and now (2nd ed.). C.E. Merrill Pub. Co.

Chicago (17e ed.) Bronvermelding

Turnbull, H. Rutherford, en Ann P. Turnbull. Parents Speak Out: Then and Now. 2nd ed. Columbus: C.E. Merrill Pub. Co, 1985.

MLA (9e ed.) Bronvermelding

Turnbull, H. Rutherford, en Ann P. Turnbull. Parents Speak Out: Then and Now. 2nd ed. C.E. Merrill Pub. Co, 1985.