University of Minnesota. Underground Space Center & Minnesota Energy Agency. (1979). Earth sheltered housing design: Guidelines, examples, and references. Van Nostrand Reinhold.
Chicago-Zitierstil (17. Ausg.)University of Minnesota. Underground Space Center und Minnesota Energy Agency. Earth Sheltered Housing Design: Guidelines, Examples, and References. New York: Van Nostrand Reinhold, 1979.
MLA-Zitierstil (9. Ausg.)University of Minnesota. Underground Space Center und Minnesota Energy Agency. Earth Sheltered Housing Design: Guidelines, Examples, and References. Van Nostrand Reinhold, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.