APA (7th ed.) Citation

United States. Bureau of Mines & ProQuest (Firm). (1968). Minerals Yearbook 1967. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines and ProQuest (Firm). Minerals Yearbook 1967. Washington: [publisher not identified], 1968.

MLA (9th ed.) Citation

United States. Bureau of Mines and ProQuest (Firm). Minerals Yearbook 1967. [publisher not identified], 1968.

Warning: These citations may not always be 100% accurate.