APA (7th ed.) Citation

Luft, J. (1970). Group processes: An introduction to group dynamics. National Press Books.

Chicago Style (17th ed.) Citation

Luft, Joseph. Group Processes: An Introduction to Group Dynamics. Palo Alto, CA: National Press Books, 1970.

MLA (9th ed.) Citation

Luft, Joseph. Group Processes: An Introduction to Group Dynamics. National Press Books, 1970.