Gaya APA

Heller, D, S., Wallach, R, C. (2007). Vulvar Disease: A Clinicopathological Approach . US Amerika: Informa Healthcare USA, Inc..

Gaya MLA

Heller, Debra, S.., Wallach, Robert, C.. "Vulvar Disease: A Clinicopathological Approach". US Amerika: Informa Healthcare USA, Inc., 2007. Electronic Resource.