Hesseling, P. (1986). Frontiers of learning: The Ph. D. Octopus. Dordrecht: Foris Publications.
シカゴスタイル引用形Hesseling, Pjotr. Frontiers of Learning: The Ph. D. Octopus. Dordrecht: Foris Publications, 1986.
MLA引用形式Hesseling, Pjotr. Frontiers of Learning: The Ph. D. Octopus. Dordrecht: Foris Publications, 1986.
警告: この引用は必ずしも正確ではありません.