Cita APA (7a ed.)
Søren Hougaard. The Business Idea: The Early Stages of Entrepreneurship. Springer.
Cita estilo Chicago (17a ed.)
Søren Hougaard. The Business Idea: The Early Stages of Entrepreneurship. Berlín, Alemania: Springer.
Cita MLA (9a ed.)
Søren Hougaard. The Business Idea: The Early Stages of Entrepreneurship. Springer.
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