APA (7th ed.) Citation

Da Graça, J. V. (1985). Heads of state and government. Macmillan.

Chicago Style (17th ed.) Citation

Da Graça, John V. Heads of State and Government. London: Macmillan, 1985.

MLA (8th ed.) Citation

Da Graça, John V. Heads of State and Government. Macmillan, 1985.

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