Aphids as crop pests Aphids as crop pests (ed. by) Helmut F. van Emden,P Richard Harrington - 2nd ed. - Oxfordshire CAB International 2017 - xxvii, 686 p. Include index ISBN: 9781780647098 Subjects--Topical Terms: Aphids Aphids-control Agricultural pests Dewey Class. No.: 632.752 / APH