Numbering continues from ? (Scholastic, 1968 series ?) T1217 or TK 1217 ? [probably non-comic paperback publication of the Scholastic series].
Numbering continues in ? (Scholastic, 1968 series ?) T1219 or TK 1219 ? [probably non-comic paperback publication of the Scholastic series].
Numbering continues from Marmaduke (Scholastic, 1965 series) #8071 [1979]
Numbering continues in The Marvelous Inventions of Alvin Fernald (Scholastic, 1965 series) #8073 [non-comic paperback publication of the Scholastic series].
Copyright 1968 by United Feature Syndicate Inc.
Marmaduke comic strip reprints from circa 1968 ? No dates listed.
Does not have the same contents as Marmaduke Rides Again! (Monarch Books, 1958 series) #109 [February 1959].
Known printings:
T1218:
First printing, April 1968, 0.45 USD cover price
Third printing, October 1970, ? cover price
Fourth printing, January 1971, 0.50 USD cover price.
Series renumbered and printings continued.
TK 1218:
7th printing, 1976, No cover price
9th printing, 1978, No cover price
10th printing, 1978, 0.95 USD cover price
11th printing, 1979, No cover price
13th printing, no date (circa 1979), No cover price.
Series renumbered again and printings continued.
8072:
14th or 15th printing, June 1980, no price on book.
16th printing, 1984, no price on book.