APA Style

Timberlake, Lewis R., Ziglar, Zig. (1999). It's always too soon to quit / Lewis R. Timberlake foreword by Zig Ziglar . Petaling Jaya: Advantage Quest Publications.

Chicago Style

Timberlake, Lewis R., Ziglar, Zig. It's always too soon to quit / Lewis R. Timberlake foreword by Zig Ziglar. Petaling Jaya: Advantage Quest Publications, 1999. Text.

MLA Style

Timberlake, Lewis R., Ziglar, Zig. It's always too soon to quit / Lewis R. Timberlake foreword by Zig Ziglar. Petaling Jaya: Advantage Quest Publications, 1999. Text.

Turabian Style

Timberlake, Lewis R., Ziglar, Zig. It's always too soon to quit / Lewis R. Timberlake foreword by Zig Ziglar. Petaling Jaya: Advantage Quest Publications, 1999. Print.