A Survey of State-Level Earth Science Programs in the United States.

MLA

Winter, John Henry, and Warren Edward Yasso. “A Survey of State-Level Earth Science Programs in the United States.” Journal of Geological Education, vol. 38, no. 3, Jan. 1990, pp. 229–33. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=eric&AN=EJ411033&authtype=sso&custid=ns315887.

APA

Winter, J. H., & Yasso, W. E. (1990). A Survey of State-Level Earth Science Programs in the United States. Journal of Geological Education, 38(3), 229–233.

Chicago

Winter, John Henry, and Warren Edward Yasso. 1990. “A Survey of State-Level Earth Science Programs in the United States.” Journal of Geological Education 38 (3): 229–33. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=eric&AN=EJ411033&authtype=sso&custid=ns315887.