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An approach guidance method using a single onboard optical measurement /
Harold A. Hamer and Katherine G. Johnson.

APA Citation

Hamer, H. A., Johnson, K. G. (1970). An approach guidance method using a single onboard optical measurement. Washington, D.C.: National Aeronautics and Space Administration .

MLA Citation

Hamer, Harold A, and Katherine G Johnson. An Approach Guidance Method Using a Single Onboard Optical Measurement. Washington, D.C.: National Aeronautics and Space Administration , 1970.

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