Cita APA (7th ed.)

Yeomans, D. K. (1983). The Comet Halley handbook: An observer's guide (2nd ed.). NASA, Jet Propulsion Laboratory, California Institute of Technology ; For sale by Supt. of Docs., U.S. G.P.O..

Cita Chicago (17th ed.)

Yeomans, Donald K. The Comet Halley Handbook: An Observer's Guide. 2nd ed. Pasadena, Calif. : Washington, D.C.: NASA, Jet Propulsion Laboratory, California Institute of Technology ; For sale by Supt. of Docs., U.S. G.P.O., 1983.

Cita MLA (8th ed.)

Yeomans, Donald K. The Comet Halley Handbook: An Observer's Guide. 2nd ed. NASA, Jet Propulsion Laboratory, California Institute of Technology ; For sale by Supt. of Docs., U.S. G.P.O., 1983.