Hèoll, K., Peter, H., & Lèu demann, D. (1982). Water: Examination, assessment, conditioning, chemistry, bacteriology, biology. Walter De Gruyter.
芝加哥风格引文Hèoll, Karl, Helmut Peter, 与 Dietrich Lèu demann. Water: Examination, Assessment, Conditioning, Chemistry, Bacteriology, Biology. Berlin: Walter De Gruyter, 1982.
MLA引文Hèoll, Karl, et al. Water: Examination, Assessment, Conditioning, Chemistry, Bacteriology, Biology. Walter De Gruyter, 1982.
警告：这些引文格式不一定是100％准确.