Cita APA (7th ed.)

OTT, L., MENDENHALL, W., & LARSON, R. F. (1978). Statistics: A tool for the social science.-- ed.2. Duxbury press.

Cita Chicago (17th ed.)

OTT, Lyman, William MENDENHALL, i Richard F. LARSON. Statistics: A Tool for the Social Science.-- Ed.2. North Sciuate: Duxbury press, 1978.

Cita MLA (9th ed.)

OTT, Lyman, et al. Statistics: A Tool for the Social Science.-- Ed.2. Duxbury press, 1978.