Rodríguez Sánchez, C., Lang Lang, L., Wang Wong, A., Altendorf, K., García Santamaría, F., & Lipski, A. (2006). Lettuce for Human Consumption Collected in Costa Rica Contains Complex Communities of Culturable Oxytetracycline- and Gentamicin-Resistant Bacteria.

Rodríguez Sánchez, César, Lore Lang Lang, Amy Wang Wong, Karlheinz Altendorf, Fernando García Santamaría, ja André Lipski. Lettuce for Human Consumption Collected in Costa Rica Contains Complex Communities of Culturable Oxytetracycline- and Gentamicin-Resistant Bacteria. 2006.

Rodríguez Sánchez, César, et al. Lettuce for Human Consumption Collected in Costa Rica Contains Complex Communities of Culturable Oxytetracycline- and Gentamicin-Resistant Bacteria. 2006.