APA (7th ed.) Citation

Conkling, C., Jackman, E. R., & Scharff, J. (1967). Steens Mountain in Oregon's high desert country. Caxton Printers.

Chicago Style (17th ed.) Citation

Conkling, Charles, E. R. Jackman, and John Scharff. Steens Mountain in Oregon's High Desert Country. Caldwell, Idaho: Caxton Printers, 1967.

MLA (8th ed.) Citation

Conkling, Charles, et al. Steens Mountain in Oregon's High Desert Country. Caxton Printers, 1967.