Cita APA

Zhong, Q., Gelaye, B., Sánchez, S. E., & Williams, M. A. (2015). Psychometric Properties of the Pittsburgh Sleep Quality Index (PSQI) in a Cohort of Peruvian Pregnant Women.

Citación estilo Chicago

Zhong, Qiu-Yue, Bizu Gelaye, Sixto E. Sánchez, y Michelle A. Williams. Psychometric Properties of the Pittsburgh Sleep Quality Index (PSQI) in a Cohort of Peruvian Pregnant Women. 2015.

Cita MLA

Zhong, Qiu-Yue, Bizu Gelaye, Sixto E. Sánchez, y Michelle A. Williams. Psychometric Properties of the Pittsburgh Sleep Quality Index (PSQI) in a Cohort of Peruvian Pregnant Women. 2015.