APA (7th ed.) Citation

Collier, R. (1978). Bridge across the sky: The Berlin blockade and airlift, 1948 - 1949. McGraw-Hill.

Chicago Style (17th ed.) Citation

Collier, Richard. Bridge Across the Sky: The Berlin Blockade and Airlift, 1948 - 1949. New York [u.a.]: McGraw-Hill, 1978.

MLA (9th ed.) Citation

Collier, Richard. Bridge Across the Sky: The Berlin Blockade and Airlift, 1948 - 1949. McGraw-Hill, 1978.