ISBN-13: 9780425099995 / Angielski / Miękka (mass market paperbound / 1986 / 192 str.
ISBN-13: 9780425099995 / Angielski / Miękka (mass market paperbound / 1986 / 192 str.
"A heavyweight amoung motivational writers."--Charles Paul conn, author of An Uncommon Freedom.