Cita APA (7a ed.)

Logan, R. A., Gibbons, W., & Christiansen, S. (1993). Environmental issues for the '90s: A handbook for journalists (1993-94 ed.). Environmental Reporting Forum.

Cita Chicago Style (17a ed.)

Logan, Robert A., Wendy Gibbons, y Stacy Christiansen. Environmental Issues for the '90s: A Handbook for Journalists. 1993-94 ed. Washington, D.C.: Environmental Reporting Forum, 1993.

Cita MLA (9a ed.)

Logan, Robert A., et al. Environmental Issues for the '90s: A Handbook for Journalists. 1993-94 ed. Environmental Reporting Forum, 1993.