APA (7e ed.) Bronvermelding

DRUCKER PETER F. (1969). TRE AGE OF DISCONTINUITY, GUIDE LINES TO OUR CHANGING SOCIETY. HARPER & ROW.

Chicago (17e ed.) Bronvermelding

DRUCKER PETER F. TRE AGE OF DISCONTINUITY, GUIDE LINES TO OUR CHANGING SOCIETY. NEW YORK: HARPER & ROW, 1969.

MLA (9e ed.) Bronvermelding

DRUCKER PETER F. TRE AGE OF DISCONTINUITY, GUIDE LINES TO OUR CHANGING SOCIETY. HARPER & ROW, 1969.