Gaya APA

Chella, Q, ,. et al (2021). Be Period Positive : Reframe your thinking and reshape the future of menstruation . New York: Dorling Kindersley Ltd..

Gaya MLA

Chella, Quint, ,. et al. "Be Period Positive : Reframe your thinking and reshape the future of menstruation". New York: Dorling Kindersley Ltd., 2021. Text.