Zarka, Jim, 1955- All terrain biking : : skills and techniques for mountain bikers / [electronic resource] / Jim Zarka ; illustrated by the author.. — Mill Valley, CA : : Bicycle Books,, c1991.. — 157 p. : : ill. ; 22 cm. ISBN: 0933201389 9780933201385 LCCN: 91070409 Nat. Bib. No.: GB92-18383 Subjects--Topical Terms: Mountain biking--Training.Mountain biking. Subjects--Index Terms: Cycling LC Class. No.: GV1056 / .Z37 1991 Dewey Class. No.: 796.6