Observing the sun at 19,300 feet altitude, Mount Aunconquilcha, Chile /
by C.P. Butler.

APA Citation

Butler, C. P., Smithsonian Institution. Roebling Fund. (1936). Observing the sun at 19,300 feet altitude, Mount Aunconquilcha, Chile. Washington: Smithsonian Institution.

MLA Citation

Butler, C. P, and Smithsonian Institution. Roebling Fund. Observing the Sun At 19,300 Feet Altitude, Mount Aunconquilcha, Chile. Washington: Smithsonian Institution, 1936.

Warning: These citations may not always be complete (especially for serials).