APA Citatie

Shipp, D. E., & Adams, S. (1964). Developing arithemetic concepts and skills.

Chicago Style citaat

Shipp, Donald E., en Sam Adams. Developing Arithemetic Concepts and Skills. Prentice-Hall Inc., Englewood Cliffs, New Jersy, 1964.

MLA citatie

Shipp, Donald E., en Sam Adams. Developing Arithemetic Concepts and Skills. 1964.