Cita APA (7a ed.)

Henisch, G. (1971). The principles of geometry, astronomie and geographie. Da Capo Press.

Cita Chicago Style (17a ed.)

Henisch, Georg. The Principles of Geometry, Astronomie and Geographie. LondonNew York: Da Capo Press, 1971.

Cita MLA (8a ed.)

Henisch, Georg. The Principles of Geometry, Astronomie and Geographie. Da Capo Press, 1971.