APA (7th ed.) Citation

(1967). State of Montana: Base map with highways and contours (compiled in 1965, ed. of 1966.).

Chicago Style (17th ed.) Citation

State of Montana: Base Map with Highways and Contours. compiled in 1965, ed. of 1966. Denver, Col. u.a, 1967.

MLA (9th ed.) Citation

State of Montana: Base Map with Highways and Contours. compiled in 1965, ed. of 1966. 1967.