Cita APA (7th ed.)

Blishen, E. (1990). Junior Pears Encyclopaedia (30a. ed.). Pelham Books.

Cita Chicago (17th ed.)

Blishen, Edward. Junior Pears Encyclopaedia. 30a. ed. Londres: Pelham Books, 1990.

Cita MLA (9th ed.)

Blishen, Edward. Junior Pears Encyclopaedia. 30a. ed. Pelham Books, 1990.