Cita APA (7a ed.)

Backlund,H.O. (1933). A contribution to the knowledge of the Poultry-Lice in Finland.

Cita Chicago Style (17a ed.)

Backlund,H.O. A Contribution to the Knowledge of the Poultry-Lice in Finland. Helsingsfors-FIN, 1933.

Cita MLA (8a ed.)

Backlund,H.O. A Contribution to the Knowledge of the Poultry-Lice in Finland. 1933.