APA

Costa J. E., Costa J. E. & Baker V. R. (1981). Surficial geology. New York [u.a.]: Wiley.

Chicago

Costa John E, Costa John Emil and Baker Victor R. 1981. Surficial geology. New York [u.a.]: Wiley.

Harvard

Costa J. E., Costa J. E. and Baker V. R. (1981). Surficial geology. New York [u.a.]: Wiley.

MLA

Costa John E, Costa John Emil and Baker Victor R. Surficial geology. New York [u.a.]: Wiley. 1981.