Hansen, R., Newman, E., Penrose, R., & Tod, K. (1978). METRIC AND CURVATURE PROPERTIES OF H-SPACE.
芝加哥风格引文Hansen, R., E. Newman, R. Penrose, 与 K. Tod. METRIC AND CURVATURE PROPERTIES OF H-SPACE. 1978.
MLA引文Hansen, R., et al. METRIC AND CURVATURE PROPERTIES OF H-SPACE. 1978.
警告：这些引文格式不一定是100％准确.