Cita APA (7th ed.)

Abbott, W. (1961). Practical geometry and engineering graphics, a textbook for engineering and other students (7th ed.). Blackie.

Cita Chicago (17th ed.)

Abbott, William. Practical Geometry and Engineering Graphics, a Textbook for Engineering and Other Students. 7th ed. London: Blackie, 1961.

Cita MLA (9th ed.)

Abbott, William. Practical Geometry and Engineering Graphics, a Textbook for Engineering and Other Students. 7th ed. Blackie, 1961.