Cita APA (7a ed.)

Blake, S. (2013). Sex and relationships education: A step-by-step guide for teachers. Routledge.

Cita Chicago Style (17a ed.)

Blake, Simon. Sex and Relationships Education: A Step-by-step Guide for Teachers. London ; New York: Routledge, 2013.

Cita MLA (9a ed.)

Blake, Simon. Sex and Relationships Education: A Step-by-step Guide for Teachers. Routledge, 2013.