Gaya APA
Levine, Robert A.. (1981).
Evaluation Research Held at the Free University of Berlin, June 1979. .
s.l.:
Sage Publications.
Gaya Chicago
Levine, Robert A..
Evaluation Research Held at the Free University of Berlin, June 1979..
s.l.:
Sage Publications,
1981.
Text.
Gaya MLA
Levine, Robert A..
Evaluation Research Held at the Free University of Berlin, June 1979..
s.l.:
Sage Publications,
1981.
Text.
Gaya Turabian
Levine, Robert A..
Evaluation Research Held at the Free University of Berlin, June 1979..
s.l.:
Sage Publications,
1981.
Print.