APA (7e ed.) Bronvermelding

Shipp, D. E., & Adams, S. j. a. (1964). Developing arithmetic concepts and skills. Prentice-Hall.

Chicago (17e ed.) Bronvermelding

Shipp, Donald E., en Sam joint auth Adams. Developing Arithmetic Concepts and Skills. Englewood Cliffs, N.J: Prentice-Hall, 1964.

MLA (9e ed.) Bronvermelding

Shipp, Donald E., en Sam joint auth Adams. Developing Arithmetic Concepts and Skills. Prentice-Hall, 1964.