Halley's Comet :
a bibliography /
compiled by Ruth S. Freitag.
APA Citation
Freitag, R. S. (1984). Halley's Comet: a bibliography. Washington: Library of Congress .
MLA Citation
Freitag, Ruth S. Halley's Comet: a Bibliography. Washington: Library of Congress , 1984.
Warning: These citations may not always be complete (especially for serials).