APA (7th ed.) Citation

Lopes, L., & Martins, R. (2014). Global Heritage Stone: Estremoz Marbles, Portugal.

Chicago Style (17th ed.) Citation

Lopes, Luís, and Ruben Martins. Global Heritage Stone: Estremoz Marbles, Portugal. 2014.

MLA (8th ed.) Citation

Lopes, Luís, and Ruben Martins. Global Heritage Stone: Estremoz Marbles, Portugal. 2014.

Warning: These citations may not always be 100% accurate.