Hopkins, A. L. (1943). Periscope peeks at the world above. Our Sunday Visitor.
Chicago Style (17th ed.) CitationHopkins, A. L. Periscope Peeks at the World Above. Huntington, Ind.: Our Sunday Visitor, 1943.
Cita MLAHopkins, A. L. Periscope Peeks at the World Above. Our Sunday Visitor, 1943.
Atenció: Aquestes cites poden no estar 100% correctes.