Citazione Stile APA (7a Edizione)

Collison, R. L. (1960). Library assistance to readers ([3rd ed., rev. and enl.].). Lockwood.

Citazione stile Chigago Style (17a edizione)

Collison, Robert Lewis. Library Assistance to Readers. [3rd ed., rev. and enl.]. London: Lockwood, 1960.

Citatione MLA (9a ed.)

Collison, Robert Lewis. Library Assistance to Readers. [3rd ed., rev. and enl.]. Lockwood, 1960.