APA (7th ed.) Citation

Bekkering, B., & Bekkering, G. (1988). Piece by Piece: A History of the Jig-saw Puzzle in the Netherlands. Van Soeren und Co..

Chicago Style (17th ed.) Citation

Bekkering, Betsy, and Geert Bekkering. Piece by Piece: A History of the Jig-saw Puzzle in the Netherlands. Amsterdam: Van Soeren und Co., 1988.

MLA (8th ed.) Citation

Bekkering, Betsy, and Geert Bekkering. Piece by Piece: A History of the Jig-saw Puzzle in the Netherlands. Van Soeren und Co., 1988.