APA (7th ed.) Citation

Lanza Sandoval, F., Granados Garay, R., & Bustillo de Young, L. (1977). Research guide to Honduras. Pan American Institute of Geography and History.

Chicago Style (17th ed.) Citation

Lanza Sandoval, Fernando, Rigoberto Granados Garay, and Leticia Bustillo de Young. Research Guide to Honduras. [Mexico]: Pan American Institute of Geography and History, 1977.

MLA (9th ed.) Citation

Lanza Sandoval, Fernando, et al. Research Guide to Honduras. Pan American Institute of Geography and History, 1977.