Enthoffer, J. (1870). Manual of topography, and text-book of topographical drawing: For the use of officers of the army and navy, civil engineers, academies, colleges, and schools of science. D. Appleton & Co..

Enthoffer, J. Manual of Topography, and Text-book of Topographical Drawing: For the Use of Officers of the Army and Navy, Civil Engineers, Academies, Colleges, and Schools of Science. New York: D. Appleton & Co., 1870.

Enthoffer, J. Manual of Topography, and Text-book of Topographical Drawing: For the Use of Officers of the Army and Navy, Civil Engineers, Academies, Colleges, and Schools of Science. D. Appleton & Co., 1870.