APA Citation

(1990). Terremoto en El Salvador. [Washington, D.C.]: OPS/OMS.

Chicago Style Citation

Terremoto En El Salvador. [Washington, D.C.]: OPS/OMS, 1990.

MLA Citation

Terremoto En El Salvador. [Washington, D.C.]: OPS/OMS, 1990.

Warning: These citations may not always be 100% accurate.