Gaya APA

Swanson, C, P., Marieb, E, N. (NULL). Essential of human anatomy & phisiology . California:: California: The Benjamin/Cummings; 1994.

Gaya MLA

Swanson, Carl, P.., Marieb, Elaine, N.. "Essential of human anatomy & phisiology". California:: California: The Benjamin/Cummings; 1994, NULL. Text.