Lange, O. R. (1965). Wholes and parts: A general theory of system beheaviour. Pergamon Press.
Cita Chicago (17th ed.)Lange, Oscar Richard. Wholes and Parts: A General Theory of System Beheaviour. Oxford: Pergamon Press, 1965.
Cita MLA (9th ed.)Lange, Oscar Richard. Wholes and Parts: A General Theory of System Beheaviour. Pergamon Press, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.