Cita APA (7th ed.)
Schmitt, H. H. (2006). Return to the Moon: Exploration, Enterprise, and Energy in the Human Settlement of Space. Springer New York. https://doi.org/10.1007/0-387-31064-9
Cita Chicago (17th ed.)
Schmitt, Harrison H. Return to the Moon: Exploration, Enterprise, and Energy in the Human Settlement of Space. New York, NY: Springer New York, 2006. https://doi.org/10.1007/0-387-31064-9.
Cita MLA (9th ed.)
Schmitt, Harrison H. Return to the Moon: Exploration, Enterprise, and Energy in the Human Settlement of Space. Springer New York, 2006. https://doi.org/10.1007/0-387-31064-9.
Atenció: Aquestes cites poden no estar 100% correctes.