Citazione APA

Ashley, R. H. (1918). Chemical calculations (2d ed., rev.). Van Nostrand.

Stile di citazione Chicago

Ashley, Raymond Harman. Chemical Calculations. 2d ed., rev. New York: Van Nostrand, 1918.

Citazione MLA

Ashley, Raymond Harman. Chemical Calculations. 2d ed., rev. Van Nostrand, 1918.