Cita APA (7a ed.)
Toynbee, A. J. (1978). MANKIND AND MOTHER EARTH.
Cita estilo Chicago (17a ed.)
Toynbee, Arnold J. MANKIND AND MOTHER EARTH. 1978.
Cita MLA (9a ed.)
Toynbee, Arnold J. MANKIND AND MOTHER EARTH. 1978.
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