APA
Hitchens D., McGowan A. e. & Birnie E. (1998). The firm, competitiveness and environmental regulations: A s. Cheltenham: Edward Elgar.
Chicago
Hitchens David, McGowan Angela et.al and Birnie Esmond. 1998. The firm, competitiveness and environmental regulations: A s. Cheltenham: Edward Elgar.
Harvard
Hitchens D., McGowan A. e. and Birnie E. (1998). The firm, competitiveness and environmental regulations: A s. Cheltenham: Edward Elgar.
MLA
Hitchens David, McGowan Angela et.al and Birnie Esmond. The firm, competitiveness and environmental regulations: A s. Cheltenham: Edward Elgar. 1998.