APA引文

Ark, L. v. d., Ligtvoet, R., Marvelde, J. M. t., & Sijtsma, K. Investigating an invariant item ordering for polytomously scored items.

Trích dẫn kiểu Chicago

Ark, L.Andries van der., Rudy Ligtvoet, Janneke M. te Marvelde, và Klaas Sijtsma. Investigating an Invariant Item Ordering for Polytomously Scored Items.

MLA引文

Ark, L.Andries van der., Rudy Ligtvoet, Janneke M. te Marvelde, và Klaas Sijtsma. Investigating an Invariant Item Ordering for Polytomously Scored Items.

警告：這些引文格式不一定是100％准確.