APA

Korovkin F., . (1981). History of the ancient world. : Progress Publishers, Moscow.

Chicago

Korovkin F, . 1981. History of the ancient world. : Progress Publishers, Moscow.

Harvard

Korovkin F., . (1981). History of the ancient world. : Progress Publishers, Moscow.

MLA

Korovkin F, . History of the ancient world. : Progress Publishers, Moscow. 1981.