Ruef, M. (2010). Entrepreneurial Groups. In H. Landstrom & F. Lohrke (Eds.), Historical Foundations of Entrepreneurship Research (pp. 205–228). Cheltenham, UK: Edward Elgar.

Ruef, M. “Entrepreneurial Groups.” In Historical Foundations of Entrepreneurship Research, edited by H. Landstrom and F. Lohrke, 205–28. Cheltenham, UK: Edward Elgar, 2010.

Ruef M. Entrepreneurial Groups. In: Landstrom H, Lohrke F, editors. Historical Foundations of Entrepreneurship Research. Cheltenham, UK: Edward Elgar; 2010. p. 205–28.

Ruef, M. “Entrepreneurial Groups.” Historical Foundations of Entrepreneurship Research, edited by H. Landstrom and F. Lohrke, Edward Elgar, 2010, pp. 205–28.

Ruef M. Entrepreneurial Groups. In: Landstrom H, Lohrke F, editors. Historical Foundations of Entrepreneurship Research. Cheltenham, UK: Edward Elgar; 2010. p. 205–228.