APA (7e ed.) Bronvermelding

Bullock, D. H. (1978). Programmed instruction. Educational Technology Publications.

Chicago (17e ed.) Bronvermelding

Bullock, Donald H. Programmed Instruction. Englewood Cliffs, N.J: Educational Technology Publications, 1978.

MLA (9e ed.) Bronvermelding

Bullock, Donald H. Programmed Instruction. Educational Technology Publications, 1978.

Let op: Deze citaties zijn niet altijd 100% accuraat.