Bickler, G., & Solity, J. (1994). Support services: Issues for education, health and social service professionals.
Chicago Style aipamenaBickler, Graham, and Jonathan Solity. Support Services: Issues for Education, Health and Social Service Professionals. London, Cassell, 1994.
MLA aipamenaBickler, Graham, and Jonathan Solity. Support Services: Issues for Education, Health and Social Service Professionals. 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.