APA (7th ed.) Citation

Patent and Trademark Depository Library Program (U.S.). PTDLP index. United States Patent and Trademark Office, Patent and Trademark Depository Library Program.

Chicago Style (17th ed.) Citation

Patent and Trademark Depository Library Program (U.S.). PTDLP Index. Washington, D.C.: United States Patent and Trademark Office, Patent and Trademark Depository Library Program.

MLA (9th ed.) Citation

Patent and Trademark Depository Library Program (U.S.). PTDLP Index. United States Patent and Trademark Office, Patent and Trademark Depository Library Program.