APA (7th ed.) Citation

Library of Congress. Law Library. (1906). Headings and subheadings for Index to Federal statutes: Customs laws. [publisher not identified].

Chicago Style (17th ed.) Citation

Library of Congress. Law Library. Headings and Subheadings for Index to Federal Statutes: Customs Laws. [Washington]: [publisher not identified], 1906.

MLA (9th ed.) Citation

Library of Congress. Law Library. Headings and Subheadings for Index to Federal Statutes: Customs Laws. [publisher not identified], 1906.

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