Citazione APA

Barratt, H. C., & Barker, L. M. Pears cyclopaedia: A book of background information and reference for everyday use. A. & F. Pears.

Stile di citazione Chicago

Barratt, Herbert Charles, e L. Mary Barker. Pears Cyclopaedia: A Book of Background Information and Reference for Everyday Use. Isleworth [Eng.]: A. & F. Pears.

Citazione MLA

Barratt, Herbert Charles, e L. Mary Barker. Pears Cyclopaedia: A Book of Background Information and Reference for Everyday Use. A. & F. Pears.