Cita APA (7th ed.)

Dittmann, H. (2000). Learn Library of Congress Classification. DocMatrix Pty Ltd.

Cita Chicago (17th ed.)

Dittmann, Helena. Learn Library of Congress Classification. Canberra: DocMatrix Pty Ltd, 2000.

Cita MLA (9th ed.)

Dittmann, Helena. Learn Library of Congress Classification. DocMatrix Pty Ltd, 2000.