Sources of further information.

MLA

Super, Charles M., and Sara Harkness. “Sources of Further Information.” New Directions for Child & Adolescent Development, vol. 1980, no. 8, Jan. 1980, pp. 87–88. EBSCOhost, https://doi.org/10.1002/cd.23219800810.

APA

Super, C. M., & Harkness, S. (1980). Sources of further information. New Directions for Child & Adolescent Development, 1980(8), 87–88. https://doi.org/10.1002/cd.23219800810

Chicago

Super, Charles M., and Sara Harkness. 1980. “Sources of Further Information.” New Directions for Child & Adolescent Development 1980 (8): 87–88. doi:10.1002/cd.23219800810.