APA (7e ed.) Bronvermelding

(1988). Holocene and modern ground failure in Fremont Valley, and migration of Koehn take Shoreline, 1943-1977 / [peta]. Boulder, Co : Geological Society of America.

Chicago (17e ed.) Bronvermelding

Holocene and Modern Ground Failure in Fremont Valley, and Migration of Koehn Take Shoreline, 1943-1977 / [peta]. Boulder, Co : Geological Society of America, 1988.

MLA (9e ed.) Bronvermelding

Holocene and Modern Ground Failure in Fremont Valley, and Migration of Koehn Take Shoreline, 1943-1977 / [peta]. Boulder, Co : Geological Society of America, 1988.