APA (7th ed.) Citation

Falk, K. H. (1946). Falk's graphical solutions to 100,000 practical problems. Columbia graphs.

Chicago Style (17th ed.) Citation

Falk, Karl Hansson. Falk's Graphical Solutions to 100,000 Practical Problems. Columbia, Conn.: Columbia graphs, 1946.

MLA (9th ed.) Citation

Falk, Karl Hansson. Falk's Graphical Solutions to 100,000 Practical Problems. Columbia graphs, 1946.

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