Douglas, R. M., & Hemilä, H. (2005). Vitamin C for Preventing and Treating the Common Cold. Public Library of Science.
シカゴスタイル引用形Douglas, Robert M., , Harri Hemilä. Vitamin C for Preventing and Treating the Common Cold. Public Library of Science, 2005.
MLA引用形式Douglas, Robert M., , Harri Hemilä. Vitamin C for Preventing and Treating the Common Cold. Public Library of Science, 2005.
警告: この引用は必ずしも正確ではありません.