CAS printed access tools :
a workbook.
APA Citation
American Chemical Society. Chemical Abstracts Service. (1981). CAS printed access tools: a workbook. 1981 ed. Columbus, Ohio: Chemical Abstracts Service.
MLA Citation
American Chemical Society. Chemical Abstracts Service. CAS Printed Access Tools: a Workbook. 1981 ed. Columbus, Ohio: Chemical Abstracts Service, 1981.
Warning: These citations may not always be complete (especially for serials).