APA način citiranja (7. izdanje)

Hubbard Merton H., Phipps Robert R., Thompson Richard L., & United States Patent Office. Low density coffee roasting process.

Čikaški stil citiranja (17. izdanje)

Hubbard Merton H., Phipps Robert R., Thompson Richard L., i United States Patent Office. Low Density Coffee Roasting Process.

MLA način citiranja (9. izdanje)

Hubbard Merton H., et al. Low Density Coffee Roasting Process.