HOLLAND, P. (1990). Amazing models: Water Power. TAB Bokks.
Cita Chicago (17th ed.)HOLLAND, Peter. Amazing Models: Water Power. Blue Ridge Summit: TAB Bokks, 1990.
Cita MLA (9th ed.)HOLLAND, Peter. Amazing Models: Water Power. TAB Bokks, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.