APA

Fitzgerald C., Feichtinger W., Spona J., Elstein M., Lüdicke F., Müller U. & Williams C. (19940805). A comparison of the effects of two monophasic low dose oral contraceptives on the inhibition of ovulation. : Advances in contraception : the official journal of the Society for the Advancement of Contraception.

Chicago

Fitzgerald C, Feichtinger W, Spona J, Elstein M, Lüdicke F, Müller U and Williams C. 19940805. A comparison of the effects of two monophasic low dose oral contraceptives on the inhibition of ovulation. : Advances in contraception : the official journal of the Society for the Advancement of Contraception.

Harvard

Fitzgerald C., Feichtinger W., Spona J., Elstein M., Lüdicke F., Müller U. and Williams C. (19940805). A comparison of the effects of two monophasic low dose oral contraceptives on the inhibition of ovulation. : Advances in contraception : the official journal of the Society for the Advancement of Contraception.

MLA

Fitzgerald C, Feichtinger W, Spona J, Elstein M, Lüdicke F, Müller U and Williams C. A comparison of the effects of two monophasic low dose oral contraceptives on the inhibition of ovulation. : Advances in contraception : the official journal of the Society for the Advancement of Contraception. 19940805.