Kennedy, W., & Cobban, W. (1990). Cenomanian ammonite faunas from the Woodbine Formation and lower part of the Eagle Ford Group, Texas.
芝加哥风格引文Kennedy, W., 与 W. Cobban. Cenomanian Ammonite Faunas from the Woodbine Formation and Lower Part of the Eagle Ford Group, Texas. 1990.
MLA引文Kennedy, W., 与 W. Cobban. Cenomanian Ammonite Faunas from the Woodbine Formation and Lower Part of the Eagle Ford Group, Texas. 1990.
警告：这些引文格式不一定是100％准确.