Person Abler, David Gerrard 1960 Bezüge im Wissensnetz Variante Namensentität der Person (2) GND-Personen Abler, David Abler, David G. Bevorzugte Namensentität der Person (1) GND-Personen Abler, David Gerrard Affiliation (1) GND-Personen Pennsylvania State University (University Park, Pa.). Department of Agricultural Economics and Rural Sociology