APA (7th ed.) Citation

Open University. (1972). Linear functionals and duality: [and] Systems of differential equations. Open University Press.

Chicago Style (17th ed.) Citation

Open University. Linear Functionals and Duality: [and] Systems of Differential Equations. Bletchley: Open University Press, 1972.

MLA (8th ed.) Citation

Open University. Linear Functionals and Duality: [and] Systems of Differential Equations. Open University Press, 1972.