Cita APA (7a ed.)
ebrary, Inc. (2006). The Hutchinson encyclopedia of science. Helicon Pub..
Cita Chicago Style (17a ed.)
ebrary, Inc. The Hutchinson Encyclopedia of Science. Oxon: Helicon Pub., 2006.
Cita MLA (9a ed.)
ebrary, Inc. The Hutchinson Encyclopedia of Science. Helicon Pub., 2006.
Precaución: Estas citas no son 100% exactas.