Παραπομπή σε μορφή APA (7η εκδ.)

Callanta, N. M., & Castro, P. E. (1969). The effectiveness of the PRRM method of training auxiliary literacy teachers. [publisher not identified].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Callanta, Norma M., και Perla E. Castro. The Effectiveness of the PRRM Method of Training Auxiliary Literacy Teachers. [place of publication not identified]: [publisher not identified], 1969.

Παραπομπή σε μορφή MLA (9th εκδ.)

Callanta, Norma M., και Perla E. Castro. The Effectiveness of the PRRM Method of Training Auxiliary Literacy Teachers. [publisher not identified], 1969.