APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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