APA aipamena

Wahl, E. F. (1977). Geometrical energy utilization. John - Wiley.

Chicago Style aipamena

Wahl, Edward F. Geometrical Energy Utilization. New York: John - Wiley, 1977.

MLA aipamena

Wahl, Edward F. Geometrical Energy Utilization. John - Wiley, 1977.