Cita APA (7th ed.)

Ryken, L. (1987). Work and leisure in christian perspective. Multnomah.

Cita Chicago (17th ed.)

Ryken, Leland. Work and Leisure in Christian Perspective. Portland: Multnomah, 1987.

Cita MLA (9th ed.)

Ryken, Leland. Work and Leisure in Christian Perspective. Multnomah, 1987.