APA

Ferguson J. H., I. Mchenry D. E. c., .Element of America Government. New York: McGraw-Hill Book Company Inc.

Chicago

Ferguson John H, I. Mchenry Dean E coaut, .Element of America Government. New York: McGraw-Hill Book Company Inc.

Harvard

Ferguson J. H., I. Mchenry D. E. c., .Element of America Government. New York: McGraw-Hill Book Company Inc.

MLA

Ferguson John H, I. Mchenry Dean E coaut, .New York: McGraw-Hill Book Company Inc. .