Pada tahun 1997, The Uniting of Europe terpilih sebagai satu dari 50 buku terpenting dalam bidang hubungan internasional pada abad ke-20 oleh jurnal Foreign Affairs.[1][2]
Karya-karyanya meliputi:
Haas, Ernst B. 1952. The reconciliation of conflicting colonial policy aims: acceptance of the League of Nations mandate system. Int. Organ. 6(4):521–36
Haas, Ernst B. 1953. The balance of power as a guide to policy-making. J. Polit. 15(3):370–98
Haas, Ernst B. 1958. The Uniting of Europe. Stanford: Stanford Univ. Press
Haas, Ernst B. 1961. International integration: the European and the universal process. Int. Organ. 15(3):366–92
Haas, Ernst B. 1964. Beyond the Nation State. Stanford: Stanford Univ. Press
Haas, Ernst B. 1970. Human Rights and International Action. Stanford: Stanford Univ. Press
Haas, Ernst B. 1978. Global Evangelism Rides Again: How to Protect Human Rights Without Really Trying. Univ. Calif. Policy Pap. No. 5, Berkeley, CA
Haas, Ernst B. 1990. When Knowledge is Power: Three Models of Change in International Organizations. Berkeley: Univ. Calif. Press
Haas, Ernst B. 1993. Beware the Slippery Slope: Notes Toward the Definition of Justifiable Intervention. Univ. Calif., Inst. Int. Stud. Policy Pap. No. 42, Berkeley, CA
Haas, Ernst B. 1997. Nationalism, Liberalism and Progress. Vol. 1. The Rise and Decline of Nationalism. Ithaca, NY: Cornell Univ. Press
Haas, Ernst B. 2000. Nationalism, Liberalism and Progress. Vol. 2. The Dismal Fate of New Nations. Ithaca, NY: Cornell Univ. Press