Gaya APA

Boehnel, G, H, H. (1978). Proceedings of the International Symposium on Remote Sensing for Observation and Inventory of Earth Resources and the Endangered Environment, July 2-8, 1978, Freiburg, Federal Republic of Germany . : .

Gaya MLA

Boehnel, Gerd, Hildebrandt;, H.-J.. "Proceedings of the International Symposium on Remote Sensing for Observation and Inventory of Earth Resources and the Endangered Environment, July 2-8, 1978, Freiburg, Federal Republic of Germany". : , 1978. Text.