APA način citiranja

Pirdel, M., & Pirdel, L. (2009). Perceived Environmental Stressors and Pain Perception During Labor Among Primiparous and Multiparous Women. Avicenna Research Institute.

Čikaški stil citiranja

Pirdel, Manizheh, i Leila Pirdel. Perceived Environmental Stressors and Pain Perception During Labor Among Primiparous and Multiparous Women. Avicenna Research Institute, 2009.

MLA način citiranja

Pirdel, Manizheh, i Leila Pirdel. Perceived Environmental Stressors and Pain Perception During Labor Among Primiparous and Multiparous Women. Avicenna Research Institute, 2009.