Cita APA (7th ed.)
Collins, G. (1891). Notes on North American Myriapoda of the family Geophylidae.
Cita Chicago (17th ed.)
Collins, G.N. Notes on North American Myriapoda of the Family Geophylidae. Washington, 1891.
Cita MLA (9th ed.)
Collins, G.N. Notes on North American Myriapoda of the Family Geophylidae. 1891.
Atenció: Aquestes cites poden no estar 100% correctes.