APA (7th ed.) Citation

Smith, N. G. (1985). Stratigraphy, petrography and geochemistry of Upper Devonian black shales, Gataga District, north central British Columbia. [publisher not identified].

Chicago Style (17th ed.) Citation

Smith, Nathaniel Greene. Stratigraphy, Petrography and Geochemistry of Upper Devonian Black Shales, Gataga District, North Central British Columbia. [Place of publication not identified]: [publisher not identified], 1985.

MLA (9th ed.) Citation

Smith, Nathaniel Greene. Stratigraphy, Petrography and Geochemistry of Upper Devonian Black Shales, Gataga District, North Central British Columbia. [publisher not identified], 1985.