Theory of web of causation was given by
Theory of web of causation was proposed by MacMahon and Pugh in their book: "Epidemiological Principles and Methods". Web of causation considers all the predisposing factors of any type and their complex inter-relationship with each other. Ref : Park&;s Textbook of Preventive and Social Medicine; 23rd edition; Page 34
Mc Mohan and Pugh
Petfenkoffer
John snow
Louis Pasteur
Concept of health and disease