APA (7th ed.) Citation

Marr, H. E. (1976). XRF4-computer programing for X-ray analysis. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Marr, Harold E. XRF4-computer Programing for X-ray Analysis. [Washington]: U.S. Dept. of the Interior, Bureau of Mines, 1976.

MLA (9th ed.) Citation

Marr, Harold E. XRF4-computer Programing for X-ray Analysis. U.S. Dept. of the Interior, Bureau of Mines, 1976.