Douglas, L. V. (1996). Danish immigration to America: An annotated bibliography of resources at the Library of Congress. Washington, D.C.: [Library of Congress].

Douglas, Lee V. Danish Immigration to America: An Annotated Bibliography of Resources At the Library of Congress. Washington, D.C.: [Library of Congress], 1996.

Douglas, Lee V. Danish Immigration to America: An Annotated Bibliography of Resources At the Library of Congress. Washington, D.C.: [Library of Congress], 1996.