00286nam a2200109Ia 4500082002000000100001900020245005600039260003500095300001500130500000500145700002600150  a330.08bT587.SP  aTinbergen, Jan  aSelected papersbcEd. by L. H. Klaassen and Others  aAmsterdambNorth-Hollandc1959  axii, 318p.  a  aKlaassen, L. H. ; ed.