Dyfyniad APA

ebrary, Inc. (1991). United States Antarctic Research report no. 32 to the Scientific Committee on Antarctic Research (SCAR) 1 April 1989 - 31 March 1990. National Academy Press.

Dyfyniad Arddull Chicago

ebrary, Inc. United States Antarctic Research Report No. 32 to the Scientific Committee on Antarctic Research (SCAR) 1 April 1989 - 31 March 1990. Washington, DC: National Academy Press, 1991.

Dyfyniad MLA

ebrary, Inc. United States Antarctic Research Report No. 32 to the Scientific Committee on Antarctic Research (SCAR) 1 April 1989 - 31 March 1990. National Academy Press, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.