APA (7th ed.) Citation

Social Science Research Council. USA & Hartup, W. W. (1986). Relationships and development. Erlbaum.

Chicago Style (17th ed.) Citation

Social Science Research Council. USA and Willard W. Hartup. Relationships and Development. Hillsdale, N.J. [u.a.]: Erlbaum, 1986.

MLA (9th ed.) Citation

Social Science Research Council. USA and Willard W. Hartup. Relationships and Development. Erlbaum, 1986.