APA

Alvarado Zaldivar G., Ruiz Astorga R., Arenas Arenas M., Solis Carrera L., Rueda Cisneros D. & Vázquez Arreola I. (19940202). [Safety, efficacy and control of the menstrual cycle by a monophasic oral contraceptive containing 75 mcg of gestodene and 30 mcg of ethynyl estradiol]. : Ginecologia y obstetricia de Mexico.

Chicago

Alvarado Zaldivar G, Ruiz Astorga R, Arenas Arenas M, Solis Carrera L, Rueda Cisneros D and Vázquez Arreola I. 19940202. [Safety, efficacy and control of the menstrual cycle by a monophasic oral contraceptive containing 75 mcg of gestodene and 30 mcg of ethynyl estradiol]. : Ginecologia y obstetricia de Mexico.

Harvard

Alvarado Zaldivar G., Ruiz Astorga R., Arenas Arenas M., Solis Carrera L., Rueda Cisneros D. and Vázquez Arreola I. (19940202). [Safety, efficacy and control of the menstrual cycle by a monophasic oral contraceptive containing 75 mcg of gestodene and 30 mcg of ethynyl estradiol]. : Ginecologia y obstetricia de Mexico.

MLA

Alvarado Zaldivar G, Ruiz Astorga R, Arenas Arenas M, Solis Carrera L, Rueda Cisneros D and Vázquez Arreola I. [Safety, efficacy and control of the menstrual cycle by a monophasic oral contraceptive containing 75 mcg of gestodene and 30 mcg of ethynyl estradiol]. : Ginecologia y obstetricia de Mexico. 19940202.