Lange, O. R. (1965). Wholes and parts: A general theory of system beheaviour. Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Lange, Oscar Richard. Wholes and Parts: A General Theory of System Beheaviour. Oxford: Pergamon Press, 1965.
Lua MLA (9ú heag.)Lange, Oscar Richard. Wholes and Parts: A General Theory of System Beheaviour. Pergamon Press, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.