Notes:
Reprints of "Marmaduke" (National Newspaper Syndicate, Inc.) newspaper comic panels from 1963, 1964, and possibly 1965. Copyright 1963-1965 by United Feature Syndicate, Inc. By arrangement with the National Newspaper Syndicate, Inc.
The 45-cent cover price variant ran from the fifth printing, April 1969, to the ninth printing, probably sometime in 1970.
Dimensions:
small mass market paperback size (4 3/16 in. x 6 3/8 in.) (1st thru 10th printings), standard mass market paperback size (4 3/16√ x 6 7/8 in.) (13th thru 18th printings)