APA (7th ed.) Citation

Baird, J. A., Grabhorn, R., & Hoyem, A. (1967). California's pictorial letter sheets, 1849-1869. David Magee.

Chicago Style (17th ed.) Citation

Baird, Joseph Armstrong, Robert Grabhorn, and Andrew Hoyem. California's Pictorial Letter Sheets, 1849-1869. San Francisco: David Magee, 1967.

MLA (9th ed.) Citation

Baird, Joseph Armstrong, et al. California's Pictorial Letter Sheets, 1849-1869. David Magee, 1967.