APA citiranje

D S Halacy. (1968). Century 21: Your life in a year 2001 and beyond. Philadelphia: Macrae Smith.

Trích dẫn kiểu Chicago

D S Halacy. Century 21: Your Life in a Year 2001 and Beyond. Philadelphia: Macrae Smith, 1968.

MLA citiranje

D S Halacy. Century 21: Your Life in a Year 2001 and Beyond. Philadelphia: Macrae Smith, 1968.

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