APA (7th ed.) Citation
Zwettler-Otte, S., Bolognini, S., & Gross, R. (2013). The sphinx and the riddles of passion, love and sexuality. PL Academic Researcch.
Chicago Style (17th ed.) Citation
Zwettler-Otte, Sylvia, Stefano Bolognini, and R. Gross. The Sphinx and the Riddles of Passion, Love and Sexuality. Frankfurt am main, [Germany]: PL Academic Researcch, 2013.
MLA (9th ed.) Citation
Zwettler-Otte, Sylvia, et al. The Sphinx and the Riddles of Passion, Love and Sexuality. PL Academic Researcch, 2013.
Warning: These citations may not always be 100% accurate.