Cita APA (7a ed.)
Petersen, R. A. (1991). Health issues for secondary teachers. Kendall/Hunt.
Cita Chicago Style (17a ed.)
Petersen, Ray A. Health Issues for Secondary Teachers. Dbuque, Iowa: Kendall/Hunt, 1991.
Cita MLA (9a ed.)
Petersen, Ray A. Health Issues for Secondary Teachers. Kendall/Hunt, 1991.
Precaución: Estas citas no son 100% exactas.