Cita APA

Duck, S. E., & Silver, R. C. E. (1990). Personal relationships and social support.

Chicago Edition Citation

Duck, Steve; Ed, i Roxane Cohen; Ed Silver. Personal Relationships and Social Support. New Delhi, Sage Publications, 1990.

Cita MLA

Duck, Steve; Ed, i Roxane Cohen; Ed Silver. Personal Relationships and Social Support. 1990.