APA (7th ed.) Citation

(1970). Hillside nature trail: Timpanogos Cave National Monument, Utah (4th ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

Hillside Nature Trail: Timpanogos Cave National Monument, Utah. 4th ed. [Place of publication not identified]: [publisher not identified], 1970.

MLA (9th ed.) Citation

Hillside Nature Trail: Timpanogos Cave National Monument, Utah. 4th ed. [publisher not identified], 1970.