Graham, H. J. (1981). Parasites and the land application of sewage sludge. Environment Canada : Training and Technology Transfer Division (Water), Environmental Protection Service, Environment Canada [distributor].
芝加哥风格引文Graham, H. J. Parasites and the Land Application of Sewage Sludge. Ottawa, Ont.: Environment Canada : Training and Technology Transfer Division (Water), Environmental Protection Service, Environment Canada [distributor], 1981.
MLA引文Graham, H. J. Parasites and the Land Application of Sewage Sludge. Environment Canada : Training and Technology Transfer Division (Water), Environmental Protection Service, Environment Canada [distributor], 1981.
警告：这些引文格式不一定是100％准确.