APA način citiranja

Wang, W., & Jin, K. A generalized model with internal restrictions on item difficulty for polytomous items.

Čikaški stil citiranja

Wang, Wen-Chung., i Kuan-Yu Jin. A Generalized Model With Internal Restrictions On Item Difficulty for Polytomous Items.

MLA način citiranja

Wang, Wen-Chung., i Kuan-Yu Jin. A Generalized Model With Internal Restrictions On Item Difficulty for Polytomous Items.