Cita APA (7a ed.)

Lapping, M. B., Daniels, T. L., & Keller, J. W. (1989). Rural planning and development in the United States. Guilford.

Cita Chicago Style (17a ed.)

Lapping, Mark B., Thomas L. Daniels, y John W. Keller. Rural Planning and Development in the United States. New York [etc.]: Guilford, 1989.

Cita MLA (9a ed.)

Lapping, Mark B., et al. Rural Planning and Development in the United States. Guilford, 1989.