Cita APA (7a ed.)
Ross, R. G. Principles of the Business Rule Approach. Addison-Wesley.
Cita estilo Chicago (17a ed.)
Ross, Ronald G. Principles of the Business Rule Approach. Boston, EUA: Addison-Wesley.
Cita MLA (9a ed.)
Ross, Ronald G. Principles of the Business Rule Approach. Addison-Wesley.
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