APA (7th ed.) Citation

Cooper, R. S. (1963). A code for reducing many-group cross sections to few groups. Los Alamos Scientific Laboratory of the University of California.

Chicago Style (17th ed.) Citation

Cooper, Ralph S. A Code for Reducing Many-group Cross Sections to Few Groups. Los Alamos, New Mexico: Los Alamos Scientific Laboratory of the University of California, 1963.

MLA (9th ed.) Citation

Cooper, Ralph S. A Code for Reducing Many-group Cross Sections to Few Groups. Los Alamos Scientific Laboratory of the University of California, 1963.