Gaya APA

Howell, R, G., Howell, P, L. (1979). Discipline in the classroom : solving the teaching puzzle . Reston, VA: Reston.

Gaya MLA

Howell, Robert, G.., Howell, Patricia, L.. "Discipline in the classroom : solving the teaching puzzle". Reston, VA: Reston, 1979. Text.