Fuente: Sociology and modern systems theory (1967), p. vii as cited in: cited in: Ludwig von Bertalanffy (1968) General System Theory. p. 7-8.
Walter F. Buckley:
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Walter F. Buckley: Frases en inglés
Fuente: Class and society (1959), p. 46.
“A system is more than the sum of its parts.”
Fuente: Sociology and modern systems theory (1967), p. 42.
Fuente: Sociology and modern systems theory (1967), p. 50 as cited in: Roberta R. Greene (2011) Human Behavior Theory and Social Work Practice. p. 182.
Walter F. Buckley (1970) in: Cry California. Vol 6. p. 28.
