TY - BOOK AU - Lamm, Steven AU - Couzens, Gerald Secor TI - The hardness factor : how to achieve your best health and sexual fitness at any age SN - 9780060755515 SN - 200529637 U1 - 613.96081 LAM PY - 2005/// CY - New York PB - HarperCollins KW - Physical Fitness KW - Sex instruction for men ER -