APA

Murck B. W., Skinner B. J. & Porter S. C. (19). Environmental geology. New York [u.a.]: Wiley.

Chicago

Murck Barbara Winifred, Skinner Brian J and Porter Stephen C. 19. Environmental geology. New York [u.a.]: Wiley.

Harvard

Murck B. W., Skinner B. J. and Porter S. C. (19). Environmental geology. New York [u.a.]: Wiley.

MLA

Murck Barbara Winifred, Skinner Brian J and Porter Stephen C. Environmental geology. New York [u.a.]: Wiley. 19.