Bull, P., & Ferreira, P. (2013). Dark energy and the inhomogeneous universe.
芝加哥风格引文Bull, P., 与 P. Ferreira. Dark Energy and the Inhomogeneous Universe. 2013.
MLA引文Bull, P., 与 P. Ferreira. Dark Energy and the Inhomogeneous Universe. 2013.
警告：这些引文格式不一定是100％准确.