APA (7th ed.) Citation

Torres, P., Dionísio, R. P., Malhão, S., Neto, L., & Gonçalves, G. (2021). Machinery retrofiting for industry 4.0.

Chicago Style (17th ed.) Citation

Torres, Pedro, Rogério Pais Dionísio, Sérgio Malhão, Luís Neto, and Gil Gonçalves. Machinery Retrofiting for Industry 4.0. 2021.

MLA (8th ed.) Citation

Torres, Pedro, et al. Machinery Retrofiting for Industry 4.0. 2021.