International Correspondence Schools. (1923). Elements of algebra, geometry and mensuration, reading working drawings, measuring instruments, precision measuring instruments, general appliances and processes, elementary mechanics, hydrostatics, pneumatics, geometry and trigonometry, natural sines, cosines, tangents and cotangents, table of powers and roots. International Textbook Co..
Чикаго стиль цитування (17-те видання)International Correspondence Schools. Elements of Algebra, Geometry and Mensuration, Reading Working Drawings, Measuring Instruments, Precision Measuring Instruments, General Appliances and Processes, Elementary Mechanics, Hydrostatics, Pneumatics, Geometry and Trigonometry, Natural Sines, Cosines, Tangents and Cotangents, Table of Powers and Roots. Scranton, Pa.: International Textbook Co., 1923.
Стиль цитування MLA (8-ме видання)International Correspondence Schools. Elements of Algebra, Geometry and Mensuration, Reading Working Drawings, Measuring Instruments, Precision Measuring Instruments, General Appliances and Processes, Elementary Mechanics, Hydrostatics, Pneumatics, Geometry and Trigonometry, Natural Sines, Cosines, Tangents and Cotangents, Table of Powers and Roots. International Textbook Co., 1923.