IYF Lüneburger Heide course 1955-1969 / / International Youth Federation for Environmental Studies and Conservation ; published with support of the International Union for Conservation of Nature and Natural Resources (IUCN).

MLA

Iyf Lüneburger Heide Course 1955-1969. [S.l.]: IYF, 1971.

APA

(1971). IYF Lüneburger Heide course 1955-1969. [S.l.]: IYF.

Chicago

IYF Lüneburger Heide Course 1955-1969. [S.l.]: IYF, 1971.