A major development, however, took place in 1960s when UNESCO provided financial assistance to the Pakistan Bibliographical Working Group (PBWG) for the compilation of a retrospective bibliography
of Pakistan for the period from 1947-1961.
Another individual named Cardinell, (Aje 1977; 21(7)) concentrated on Ghana for a national retrospective bibliography
, entitled "A Bibliography of the Gold Coast 1496-1931" published in 1932.
At the three previous national conferences on the state of Canadian bibliography, much attention was given to the former National Library of Canada and its role in bibliographical activities, with particular emphasis on the national bibliography, Canadiana, and at the 1974 conference on the retrospective bibliography
, Canadiana 1867-1900.
The project is complicated enormously by the very success of the humanist movement, which managed to saturate early modern culture so thoroughly with rhetorical principles and teachings that it is surprisingly difficult even to draw the boundaries for a retrospective bibliography
Also included is an extensive four-part bibliography containing a retrospective bibliography
on color harmony and color in art listing 318 books published before 1975; a general bibliography of some 1,450 titles on the topic from antiquity forward, most from the 20th century; a compilation of bibliographies of color; and a cross reference of titles in the general bibliography arranged in 37 color subject categories.
Cardinell (Aje 1977) created a national retrospective bibliography
for Ghana that was published 1932.
Martha Shepard was one of the `correspondents,' but the person most often mentioned was Madeleine Pellerin, Tanghe's assistant for this undertaking, who also worked with him on the retrospective bibliography
Ogunsheye (1969) also explores the problem of bibliographic services in Nigeria, noting the lack of any comprehensive general retrospective bibliography