APA-čujuhus (7. p.)
Swenson, J. (1988). Writing fitness: Practical exercises for better business writing. Crisp.
Chicago-čujuhus (17. p.)
Swenson, Jack. Writing Fitness: Practical Exercises for Better Business Writing. Los Altos, Calif.: Crisp, 1988.
MLA-čujuhus (9. p.)
Swenson, Jack. Writing Fitness: Practical Exercises for Better Business Writing. Crisp, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.