APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (8th ed.) Atıf

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