APA-viite

Langford, C. H. (1973). BASIC equilibrium calculations. addison-wesley publishing co.

Chicago-tyylinen lähdeviittaus

Langford, Cooper H. BASIC Equilibrium Calculations. London: addison-wesley publishing co, 1973.

MLA-viite

Langford, Cooper H. BASIC Equilibrium Calculations. addison-wesley publishing co, 1973.