Cita APA (7th ed.)

Sandkull, B. (1968). On product changes and product planning ([Utg. av].). Studentlitteratur.

Cita Chicago (17th ed.)

Sandkull, Bengt. On Product Changes and Product Planning. [Utg. av]. Lund: Studentlitteratur, 1968.

Cita MLA (8th ed.)

Sandkull, Bengt. On Product Changes and Product Planning. [Utg. av]. Studentlitteratur, 1968.