Cita APA (7a ed.)

Ryan, F. L., Schwab, L. S., & Anderson, L. F. (1976). Things we do. Houghton Mifflin.

Cita Chicago Style (17a ed.)

Ryan, Frank L., Lynne S. Schwab, y Lee F. Anderson. Things We Do. Boston [u.a.]: Houghton Mifflin, 1976.

Cita MLA (9a ed.)

Ryan, Frank L., et al. Things We Do. Houghton Mifflin, 1976.