ebrary, Inc, Myrdal, J., & Morell, M. (2011). The agrarian history of Sweden: 4000 BC to AD 2000. Nordic Academic Press.
芝加哥风格引文ebrary, Inc, Janken Myrdal, 与 Mats Morell. The Agrarian History of Sweden: 4000 BC to AD 2000. Lund [Sweden]: Nordic Academic Press, 2011.
MLA引文ebrary, Inc, et al. The Agrarian History of Sweden: 4000 BC to AD 2000. Nordic Academic Press, 2011.
警告：这些引文格式不一定是100％准确.