APA
Knight J., . (2017). The complete guide to fertility awareness. Abingdon, Oxon: Routledge.
Chicago
Knight Jane, . 2017. The complete guide to fertility awareness. Abingdon, Oxon: Routledge.
Harvard
Knight J., . (2017). The complete guide to fertility awareness. Abingdon, Oxon: Routledge.
MLA
Knight Jane, . The complete guide to fertility awareness. Abingdon, Oxon: Routledge. 2017.