FREY, P. R. (1969). Chemistry problems: And how to solve them. Barnes & Noble.
Chicago Style (17. basım) AtıfFREY, Paul R. Chemistry Problems: And How to Solve Them. New York: Barnes & Noble, 1969.
MLA (9th ed.) AtıfFREY, Paul R. Chemistry Problems: And How to Solve Them. Barnes & Noble, 1969.
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