McGregor, John C. 1905- Culture of sites which were occupied shortly before the eruption of Sunset crater / by J. C. McGregor. - Flagstaff : Northern Arizona Society of Science and Art, 1936. - 52 p. : ill. ; 21 cm. - Museum of Northern Arizona bulletin ; no. 9 . Reproduced from type-written copy. Bibliography : p. 51-52. LCCN: s 43000006 Subjects--Topical Terms: Indians of North America--Arizona. Subjects--Geographic Terms: Arizona--Antiquities. LC Class. No.: F806 / .M95 no. 9