Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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