Loeschnig, L. V., & Zweifel, F. W. (1998). Simple space and flight experiments with everyday materials. Goodwill Pub. House.
Chicagoスタイル(17版)引用形式Loeschnig, Louis V., , Frances W. Zweifel. Simple Space and Flight Experiments with Everyday Materials. New Delhi: Goodwill Pub. House, 1998.
MLA(9版)引用形式Loeschnig, Louis V., , Frances W. Zweifel. Simple Space and Flight Experiments with Everyday Materials. Goodwill Pub. House, 1998.
警告: この引用は必ずしも正確ではありません.