1.

図書
図書
1. Instructional film research, 1918-1950 (rapid mass learning) : the Pennsylvania State College, Instructional Film Research Program, December, 1950
report prepared by Charles F. Hoban, Jr. and Edward B. van Ormer ; sponsored jointly by the Department of the Army and the Department of the Navy
出版情報: Port Washington, N.Y. : Special Devices Center, [1951]
シリーズ名: Technical report ; SDC269-7-19
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2.

図書
図書
2. Tables of computed altitude and azimuth (1 - 9)
United States. Navy Dept
出版情報: Washington, D. C. : the Hydrographic Office, [1941-1967]
シリーズ名: H.O. pub. ; n. 214
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