Cita APA (7a ed.)

Ingrao, H. C. (1971). New techniques in astronomy. Gordon and Breach Science Publishers.

Cita Chicago Style (17a ed.)

Ingrao, Hector C. New Techniques in Astronomy. New York: Gordon and Breach Science Publishers, 1971.

Cita MLA (9a ed.)

Ingrao, Hector C. New Techniques in Astronomy. Gordon and Breach Science Publishers, 1971.