(2005). The hardness factor: How to achieve your best health and sexual fitness at any age / Steven Lamm with Gerald Sector Couzens.
Cita Chicago Style (17a ed.)The Hardness Factor: How to Achieve Your Best Health and Sexual Fitness at Any Age / Steven Lamm with Gerald Sector Couzens. 2005.
Cita MLA (9a ed.)The Hardness Factor: How to Achieve Your Best Health and Sexual Fitness at Any Age / Steven Lamm with Gerald Sector Couzens. 2005.
Precaución: Estas citas no son 100% exactas.