Cita APA

Sprague, E., & Sprague, C. (1926). How to design greeting cards. Bridgman.

Chicago Style (17th ed.) Citation

Sprague, Elizabeth, i Curtiss Sprague. How to Design Greeting Cards. Pelham, N.Y: Bridgman, 1926.

Cita MLA

Sprague, Elizabeth, i Curtiss Sprague. How to Design Greeting Cards. Bridgman, 1926.