Falk-Verlag, Papp-Váry, A., & Cartographia Kft. (1993). Riga: Riga 1:20 000, city 1:10 000, oldtown 1:5 000, list of streets = Rīga = Riga 1:20 000, Innenstadt 1:10 000, Altstadt 1:5 000, Strassenverzeichnis ([1st ed.].). Cartographia Kft..
Chicago Style (17th ed.) CitationFalk-Verlag, Árpád Papp-Váry, and Cartographia Kft. Riga: Riga 1:20 000, City 1:10 000, Oldtown 1:5 000, List of Streets = Rīga = Riga 1:20 000, Innenstadt 1:10 000, Altstadt 1:5 000, Strassenverzeichnis. [1st ed.]. Budapest: Cartographia Kft., 1993.
MLA (8th ed.) CitationFalk-Verlag, et al. Riga: Riga 1:20 000, City 1:10 000, Oldtown 1:5 000, List of Streets = Rīga = Riga 1:20 000, Innenstadt 1:10 000, Altstadt 1:5 000, Strassenverzeichnis. [1st ed.]. Cartographia Kft., 1993.
Warning: These citations may not always be 100% accurate.