APA

Paul E, Robert V N. & Toussoun T A B.Root diseases and soil -borne pathogens: second international symposium on factors determining the behaviour of plant pathogens in soil held at imperial college, London, July 14-18,1968 in conjunction with the first international congress of plant patholo. Berkeley, University of california press: .

Chicago

Paul E, Robert V Nelson and Toussoun T A Bega.Root diseases and soil -borne pathogens: second international symposium on factors determining the behaviour of plant pathogens in soil held at imperial college, London, July 14-18,1968 in conjunction with the first international congress of plant patholo. Berkeley, University of california press: .

Harvard

Paul E, Robert V N. and Toussoun T A B.Root diseases and soil -borne pathogens: second international symposium on factors determining the behaviour of plant pathogens in soil held at imperial college, London, July 14-18,1968 in conjunction with the first international congress of plant patholo. Berkeley, University of california press: .

MLA

Paul E, Robert V Nelson and Toussoun T A Bega.Berkeley, University of california press: . .