APA (7th ed.) Citation

Gallagher, T. (1984). Salazar's Portugal: The "Black Book" on fascism. European history quarterly.

Chicago Style (17th ed.) Citation

Gallagher, Tom. "Salazar's Portugal: The "Black Book" on Fascism." European History Quarterly 1984.

MLA (8th ed.) Citation

Gallagher, Tom. "Salazar's Portugal: The "Black Book" on Fascism." European History Quarterly, 1984.

Warning: These citations may not always be 100% accurate.