Girling, D. A. (1978). Everyman's encyclopaedia (6th ed.). Dent.
Cita Chicago Style (17a ed.)Girling, D. A. Everyman's Encyclopaedia. 6th ed. London: Dent, 1978.
Cita MLA (8a ed.)Girling, D. A. Everyman's Encyclopaedia. 6th ed. Dent, 1978.
Precaución: Estas citas no son 100% exactas.