Laithwaite, E. R. (1970). Propulsion without wheels. English University Press.
シカゴスタイル引用形Laithwaite, E R. Propulsion Without Wheels. London: English University Press, 1970.
MLA引用形式Laithwaite, E R. Propulsion Without Wheels. English University Press, 1970.
警告: この引用は必ずしも正確ではありません.