These titles are listed as a group, as they were the only issues to feature the title: 

"DC 100 PAGE SUPER SPECTACULAR"

These books are listed with the publisher's month of publication (as we mentioned earlier, the date does not coincide with the actual date that the book arrived on the shelf).  As you browse downward on the list, you will note that the "Issue #" column is left blank on those issues that did not fall within the run of an existing title.  In the letters page of the last issue to feature the original numbering system, E. Nelson Bridwell indicates that the next planned DC 100 Page Super Spectactular would be SHAZAM! - however, when the next issues came out, they had advertisements and there were three titles in one month.

TITLE DC# ISSUE # MONTH YEAR
WEIRD MYSTERY DC-4 May-71 1971
LOVE STORIES DC-5 Aug-71 1971
WORLD'S GREATEST SUPER HEROES DC-6 Nov-71 1971
SUPERMAN DC-7 245 Dec-71 1971
BATMAN DC-8 238 Jan-72 1972
OUR ARMY AT WAR DC-9 242 Feb-72 1972
ADVENTURE DC-10 416 Mar-72 1972
FLASH DC-11 214 Apr-72 1972
SUPERBOY DC-12 185 May-72 1972
SUPERMAN DC-13 252 Jun-72 1972
BATMAN DC-14 Feb-73 1973
SUPERBOY DC-15 Mar-73 1973
SGT. ROCK DC-16 Apr-73 1973
JUSTICE LEAGUE OF AMERICA DC-17 Jun-73 1973
SUPERMAN DC-18 Jul-73 1973
TARZAN DC-19 Aug-73 1973
BATMAN DC-20 Sep-73 1973
SUPERBOY DC-21 Oct-73 1973
FLASH DC-22 Nov-73 1973
DETECTIVE 438 Dec-73 1973
SHAZAM! DC-23? 8 Dec-73 1973
YOUNG LOVE 107 Dec-73 1973
BATMAN 254 Jan-74 1974
WITCHING HOUR 38 Jan-74 1974
YOUNG ROMANCE 197 Jan-74 1974
DETECTIVE 439 Feb-74 1974
SUPERMAN 272 Feb-74 1974
YOUNG LOVE 108 Feb-74 1974
BATMAN 255 Mar-74 1974
JUSTICE LEAGUE OF AMERICA 110 Mar-74 1974
YOUNG ROMANCE 198 Mar-74 1974
DETECTIVE 440 Apr-74 1974
HOUSE OF MYSTERY 224 Apr-74 1974
SUPERMAN FAMILY 164 Apr-74 1974
TARZAN 230 Apr-74 1974
WONDER WOMAN 211 Apr-74 1974
YOUNG LOVE 109 Apr-74 1974