Cita APA (7a ed.)

Huggins, P., Moen, L., & Manion, D. W. (1995). Teaching friendship skills, primary version: A validated Washington State innovative education program (2nd printing.). Sopris West.

Cita Chicago Style (17a ed.)

Huggins, Pat, Larry Moen, y Donna Wood Manion. Teaching Friendship Skills, Primary Version: A Validated Washington State Innovative Education Program. 2nd printing. Longmont: Sopris West, 1995.

Cita MLA (9a ed.)

Huggins, Pat, et al. Teaching Friendship Skills, Primary Version: A Validated Washington State Innovative Education Program. 2nd printing. Sopris West, 1995.