Cita APA (7th ed.)

(2021). Essentials of public health research methods / Richard A. Crosby and Laura F. Salazar.

Cita Chicago (17th ed.)

Essentials of Public Health Research Methods / Richard A. Crosby and Laura F. Salazar. 2021.

Cita MLA (9th ed.)

Essentials of Public Health Research Methods / Richard A. Crosby and Laura F. Salazar. 2021.

Atenció: Aquestes cites poden no estar 100% correctes.