Roberts, K. (1937). Northwest passage. W B Ferguson.
シカゴスタイル引用形Roberts, Kenneth. Northwest Passage. Chicago: W B Ferguson, 1937.
MLA引用形式Roberts, Kenneth. Northwest Passage. W B Ferguson, 1937.
警告: この引用は必ずしも正確ではありません.
Roberts, K. (1937). Northwest passage. W B Ferguson.
シカゴスタイル引用形Roberts, Kenneth. Northwest Passage. Chicago: W B Ferguson, 1937.
MLA引用形式Roberts, Kenneth. Northwest Passage. W B Ferguson, 1937.