APA (7. basım) Alıntı

Villabona, F. B., & Sison, W. M. (1972). Process approach in teaching science for the educable mentally retarded: Intermediate level.

Chicago Style (17. basım) Atıf

Villabona, Fe Bagares, ve Waldetrudes Montojo Sison. Process Approach in Teaching Science for the Educable Mentally Retarded: Intermediate Level. 1972.

MLA (9th ed.) Atıf

Villabona, Fe Bagares, ve Waldetrudes Montojo Sison. Process Approach in Teaching Science for the Educable Mentally Retarded: Intermediate Level. 1972.