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Standard field tables and trigonometric formulas :
a supplement to the Manual of instructions for the survey of the public lands of the United States.

APA Citation

United States. General Land Office. (1939). Standard field tables and trigonometric formulas: a supplement to the Manual of instructions for the survey of the public lands of the United States. 5th ed., Washington: U.S. GPO.

MLA Citation

United States. General Land Office. Standard Field Tables And Trigonometric Formulas: a Supplement to the Manual of Instructions for the Survey of the Public Lands of the United States. 5th ed., Washington: U.S. GPO, 1939.

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