APA (7th ed.) Citation

Canal Zone & ProQuest (Firm). (1960). Panama Canal Company. [publisher not identified].

Chicago Style (17th ed.) Citation

Canal Zone and ProQuest (Firm). Panama Canal Company. Washington: [publisher not identified], 1960.

MLA (9th ed.) Citation

Canal Zone and ProQuest (Firm). Panama Canal Company. [publisher not identified], 1960.

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