APA (7th ed.) Citation

Meggers, B. J. (1965). Early formative period of coastal Ecuador: The Valdivia and Machalilla phases [by] Betty J. Meggers [et al.]. Smithsonian Institution.

Chicago Style (17th ed.) Citation

Meggers, Betty J. Early Formative Period of Coastal Ecuador: The Valdivia and Machalilla Phases [by] Betty J. Meggers [et Al.]. Washington: Smithsonian Institution, 1965.

MLA (9th ed.) Citation

Meggers, Betty J. Early Formative Period of Coastal Ecuador: The Valdivia and Machalilla Phases [by] Betty J. Meggers [et Al.]. Smithsonian Institution, 1965.