APA (7th ed.) Citation

Baltimore Co., Md. Public Library. Book catalog and card catalog; a cost and service study.

Chicago Style (17th ed.) Citation

Baltimore Co., Md. Public Library. Book Catalog and Card Catalog; a Cost and Service Study.

MLA (9th ed.) Citation

Baltimore Co., Md. Public Library. Book Catalog and Card Catalog; a Cost and Service Study.

Warning: These citations may not always be 100% accurate.