Citazione APA

Comaromi, J. P., & Stija, M. P. (1990). Excercises in the 20th edition of the Dewey Decimal Classification. Sterling Publishers.

Stile di citazione Chicago

Comaromi, John P., e M. P. Stija. Excercises in the 20th Edition of the Dewey Decimal Classification. Sterling Publishers, 1990.

Citazione MLA

Comaromi, John P., e M. P. Stija. Excercises in the 20th Edition of the Dewey Decimal Classification. Sterling Publishers, 1990.