APA

(1979). Historical Abstracts. Ed.: Eric H. Boehm. 25: A-B Nr 4. Annual Index. Abstracts 24A: 1-8356, entries 1-7336. A. Modern history abstracts 1450-1914. B. Twentieth century abstracts (1914-1979). Santa Barbara, Calif., USA: American Bibliographical Center of ABC-Clio, Inc.

Chicago

1979. Historical Abstracts. Ed.: Eric H. Boehm. 25: A-B Nr 4. Annual Index. Abstracts 24A: 1-8356, entries 1-7336. A. Modern history abstracts 1450-1914. B. Twentieth century abstracts (1914-1979). Santa Barbara, Calif., USA: American Bibliographical Center of ABC-Clio, Inc.

Harvard

(1979). Historical Abstracts. Ed.: Eric H. Boehm. 25: A-B Nr 4. Annual Index. Abstracts 24A: 1-8356, entries 1-7336. A. Modern history abstracts 1450-1914. B. Twentieth century abstracts (1914-1979). Santa Barbara, Calif., USA: American Bibliographical Center of ABC-Clio, Inc.

MLA

Historical Abstracts. Ed.: Eric H. Boehm. 25: A-B Nr 4. Annual Index. Abstracts 24A: 1-8356, entries 1-7336. A. Modern history abstracts 1450-1914. B. Twentieth century abstracts (1914-1979). Santa Barbara, Calif., USA: American Bibliographical Center of ABC-Clio, Inc. 1979.