A petrological-mineralogical code for computer use;
edited by R. K. Harrison and P. A. Sabine.

APA Citation

Harrison, R. Keith., Sabine, P. Aubrey. (1970). A petrological-mineralogical code for computer use. London: H.M.S.O..

MLA Citation

Harrison, Ronald Keith, and Peter Aubrey Sabine. A Petrological-mineralogical Code for Computer Use. London: H.M.S.O., 1970.

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