Cita APA (7a ed.)

Posnette, A. (1963). Virus diseases of apples and pears. Commonwealth Agricultural Bureaux.

Cita Chicago Style (17a ed.)

Posnette, A.F. Virus Diseases of Apples and Pears. Farnham Royal: Commonwealth Agricultural Bureaux, 1963.

Cita MLA (8a ed.)

Posnette, A.F. Virus Diseases of Apples and Pears. Commonwealth Agricultural Bureaux, 1963.