(1938), H. S. (2019). A Crack in the Maya World. Privately Published.
Chicago Style (17th ed.) Citation(1938), Hubert Smith. A Crack in the Maya World. [Place of publication not identified]: Privately Published, 2019.
MLA (9th ed.) Citation(1938), Hubert Smith. A Crack in the Maya World. Privately Published, 2019.
Warning: These citations may not always be 100% accurate.