Ong, W. J. (1968). Petrodvorets, U.S.S.R.
Chicago Style (17th ed.) CitationOng, Walter J. Petrodvorets, U.S.S.R. 1968.
MLA (8th ed.) CitationOng, Walter J. Petrodvorets, U.S.S.R. 1968.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.
Ong, W. J. (1968). Petrodvorets, U.S.S.R.
Chicago Style (17th ed.) CitationOng, Walter J. Petrodvorets, U.S.S.R. 1968.
MLA (8th ed.) CitationOng, Walter J. Petrodvorets, U.S.S.R. 1968.