Brandwein, P. F. (1970). Invitations to investigate: An introduction to Scientific exploration. Harcourt Brace Jovanovich.
Cita Chicago (17th ed.)Brandwein, Paul F. Invitations to Investigate: An Introduction to Scientific Exploration. New York: Harcourt Brace Jovanovich, 1970.
Cita MLA (9th ed.)Brandwein, Paul F. Invitations to Investigate: An Introduction to Scientific Exploration. Harcourt Brace Jovanovich, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.