Cita APA (7a ed.)

Liles, K. J., & Heystek, H. (1980). Evaluating clay resources from Clay County, Ga., for structural clay products. Dept. of the Interior, Bureau of Mines.

Cita Chicago Style (17a ed.)

Liles, K. J., y H. Heystek. Evaluating Clay Resources from Clay County, Ga., for Structural Clay Products. Washington: Dept. of the Interior, Bureau of Mines, 1980.

Cita MLA (9a ed.)

Liles, K. J., y H. Heystek. Evaluating Clay Resources from Clay County, Ga., for Structural Clay Products. Dept. of the Interior, Bureau of Mines, 1980.