Gudmundur Magnusson. (1969). Production under risk: A theoretical study. Universitetet.
Cita Chicago (17th ed.)Gudmundur Magnusson. Production Under Risk: A Theoretical Study. Uppsala: Universitetet, 1969.
Cita MLA (9th ed.)Gudmundur Magnusson. Production Under Risk: A Theoretical Study. Universitetet, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.