Pollard, A., & Clarke, C. (1988). Deaths during mountaineering at extreme altitude.
Chicagoスタイル(17版)引用形式Pollard, A., , C. Clarke. Deaths During Mountaineering at Extreme Altitude. 1988.
MLA(9版)引用形式Pollard, A., , C. Clarke. Deaths During Mountaineering at Extreme Altitude. 1988.
警告: この引用は必ずしも正確ではありません.