APA (7th ed.) Citation

Ojakangas R. W. (1976). The Earth past and present. Наука. Ленинградское отд-ние.

Chicago Style (17th ed.) Citation

Ojakangas R. W. The Earth Past and Present. USA: Наука. Ленинградское отд-ние, 1976.

MLA (8th ed.) Citation

Ojakangas R. W. The Earth Past and Present. Наука. Ленинградское отд-ние, 1976.

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