APA (7th ed.) Citation

SpringerLink (Online service) & Wolff, L. Real photo postcards: Unbelievable images from the collection of Harvey Tulcensky.

Chicago Style (17th ed.) Citation

SpringerLink (Online service) and Laetitia Wolff. Real Photo Postcards: Unbelievable Images from the Collection of Harvey Tulcensky.

MLA (8th ed.) Citation

SpringerLink (Online service) and Laetitia Wolff. Real Photo Postcards: Unbelievable Images from the Collection of Harvey Tulcensky.

Warning: These citations may not always be 100% accurate.