Macaulay, D. (1975). Pyramid. Houghton Mifflin Company.
Cita Chicago Style (17a ed.)Macaulay, David. Pyramid. Boston: Houghton Mifflin Company, 1975.
Cita MLA (9a ed.)Macaulay, David. Pyramid. Houghton Mifflin Company, 1975.
Precaución: Estas citas no son 100% exactas.