APA (7th ed.) Citation

Trégomain, P. d. (2006). St. Petersburg - Petrograd - Leningrad. Nordost-Archiv.

Chicago Style (17th ed.) Citation

Trégomain, Pierre de. "St. Petersburg - Petrograd - Leningrad." Nordost-Archiv 2006.

MLA (8th ed.) Citation

Trégomain, Pierre de. "St. Petersburg - Petrograd - Leningrad." Nordost-Archiv, 2006.

Warning: These citations may not always be 100% accurate.