APA-viite (7. p.)

Gress, J. R., & Purpel, D. E. (1978). Curriculum: An introduction to the field. McCutchan.

Chicago-viite (17. p.)

Gress, James R., ja David E. Purpel. Curriculum: An Introduction to the Field. California: McCutchan, 1978.

MLA-viite (9. p.)

Gress, James R., ja David E. Purpel. Curriculum: An Introduction to the Field. McCutchan, 1978.