Excursion guides.
APA Citation
International Sedimentological Congress (7th : 1967 : Edinburgh and Reading). (1967). Excursion guides. [London?].
MLA Citation
International Sedimentological Congress (7th : 1967 : Edinburgh and Reading). Excursion Guides. [London?], 1967.
Warning: These citations may not always be complete (especially for serials).