Aerial tramways in the metal-mining industry : construction and operating costs /

Mode of access: Internet.

Providing for a comprehensive, long-range, and coordinated national program in oceanography.

"Report to accompany H.R. 12601."

Organization and conduct of forest insect aerial surveys in Oregon and Washington,

Mode of access: Internet.

Modern photography in theory and practice; a hand book for the amateur.

Mode of access: Internet.

The chemistry of light and photography in their application to art, science, and industry.

Mode of access: Internet.

Interpretation of geologic maps and aerial photographs

Bibliography: p. 99.