APA (7e ed.) Bronvermelding

Popham, W. J., & Baker, E. L. (1970). Systematic instruction. Prentice-Hall.

Chicago (17e ed.) Bronvermelding

Popham, W. James, en Eva L. Baker. Systematic Instruction. Englewood Cliffs, N.J.: Prentice-Hall, 1970.

MLA (8e ed.) Bronvermelding

Popham, W. James, en Eva L. Baker. Systematic Instruction. Prentice-Hall, 1970.