SCHIMDT,HELMUT. (1963). MODERN POLAROGRAPHIC METHODS. Academic Press.
Dyfyniad Arddull ChicagoSCHIMDT,HELMUT. MODERN POLAROGRAPHIC METHODS. New York: Academic Press, 1963.
Dyfyniad MLASCHIMDT,HELMUT. MODERN POLAROGRAPHIC METHODS. Academic Press, 1963.
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