913.72015 Poll M Pollock, Harry Evelyn Dorr, 1900- Mayapan, Yucatan, Mexico. [by] H. E.D.Pollock , Ralph L. Roys, T. Proskourskiff [and] A. Leyard Smith. Washington, Carnegie Institution of Washington, 1962. 442 p. ilus. mapas (2 plegs. en un bolsillo) 28 cm