APA
Heisler J. M. J., Mellon J. E., . (1946). Under the Carpathians. London: Lindsay Drummond.
Chicago
Heisler J.B Mellon J.E, Mellon J E, . 1946. Under the Carpathians. London: Lindsay Drummond.
Harvard
Heisler J. M. J., Mellon J. E., . (1946). Under the Carpathians. London: Lindsay Drummond.
MLA
Heisler J.B Mellon J.E, Mellon J E, . Under the Carpathians. London: Lindsay Drummond. 1946.
