APA (7th ed.) Citation

SpringerLink (Online service) & Long, S. (1988). Six group therapies. Plenum Press.

Chicago Style (17th ed.) Citation

SpringerLink (Online service) and Samuel Long. Six Group Therapies. New York: Plenum Press, 1988.

MLA (9th ed.) Citation

SpringerLink (Online service) and Samuel Long. Six Group Therapies. Plenum Press, 1988.

Warning: These citations may not always be 100% accurate.