Cita APA

Hutchins, R. M. (1977). Great books of the western world, Vol.16: Ptolemy, Copernicus, Kepler. Encyclopaedia Britanica Inc.

Citación estilo Chicago

Hutchins, Robert Maynard. Great Books of the Western World, Vol.16: Ptolemy, Copernicus, Kepler. Chicago: Encyclopaedia Britanica Inc, 1977.

Cita MLA

Hutchins, Robert Maynard. Great Books of the Western World, Vol.16: Ptolemy, Copernicus, Kepler. Encyclopaedia Britanica Inc, 1977.