APA (7th ed.) Citation

Barry, T. (1990). El Salvador, a country guide (First edition.). Inter-Hemispheric Education Resource Center.

Chicago Style (17th ed.) Citation

Barry, Tom. El Salvador, a Country Guide. First edition. Albuquerque: Inter-Hemispheric Education Resource Center, 1990.

MLA (9th ed.) Citation

Barry, Tom. El Salvador, a Country Guide. First edition. Inter-Hemispheric Education Resource Center, 1990.