Let's visit Russia,

by Popescu, Julian
New York, John Day Co. 1968
[Rev. ed.]

Romania /

by Popescu, Julian
Philadelphia : Chelsea House Publishers, 2000

Poland /

by Popescu, Julian
Philadelphia : Chelsea House Publishers, 2000

Hungary /

by Popescu, Julian
Philadelphia : Chelsea House Publishers, 2000

Let's visit Yugoslavia,

by Popescu, Julian
New York, John Day 1969
[Rev. ed.]

Bulgaria /

by Popescu, Julian
Philadelphia : Chelsea House Publishers, 2000

Russia /

by Popescu, Julian
Philadelphia : Chelsea House, 1998

Italian for commerce.

by Popescu, Julian
Oxford, New York, Pergamon Press 1968
[1st ed.].

Italian for commerce /

by Popescu, Julian
Oxford, England ; New York : Pergamon, 1987
2nd ed.

Let's visit Hungary /

by Popescu, Julian
London, England ; Bridgeport, Conn., U.S.A. : Burke Pub. Co., 1985

Let's visit Russia /

by Popescu, Julian
New York : Day, 1968

Rivers of the world /

New York : H. Z. Walck, 1961

Rivers of the world.

New York, H.Z. Walck, 1962