Gaya APA
Fellmann, J, D. et al (2007).
The solution-centric organization : transform your revenue engine to market and sell high value solutions (ed.9).
New York:
McGraw Hill.
Gaya MLA
Fellmann, Jerome, D.. et al.
"The solution-centric organization : transform your revenue engine to market and sell high value solutions".
ed.9
New York:
McGraw Hill,
2007.
Buku Tercetak.