Citazione Stile APA (7a Edizione)

(1937). On maya research ... Being two papers read at the Hispanic-American session of the meeting of the American historical association at Providence in 1936.

Citazione stile Chigago Style (17a edizione)

On Maya Research ... Being Two Papers Read at the Hispanic-American Session of the Meeting of the American Historical Association at Providence in 1936. 1937.

Citatione MLA (9a ed.)

On Maya Research ... Being Two Papers Read at the Hispanic-American Session of the Meeting of the American Historical Association at Providence in 1936. 1937.