Cita APA (7th ed.)

Guasch, J. M. D., Mailas, A. V. V., & De Gracia, E. H. (2014). Purchasing, storage and sanitation. Grandbooks Publishing.

Cita Chicago (17th ed.)

Guasch, Juan Martin D.R, Ana Victoria V. Mailas, i Erlinda H. De Gracia. Purchasing, Storage and Sanitation. Pateros: Grandbooks Publishing, 2014.

Cita MLA (9th ed.)

Guasch, Juan Martin D.R, et al. Purchasing, Storage and Sanitation. Grandbooks Publishing, 2014.