APA引文

Sagrera, M. (1994). Population crisis: [world population inflation ...]. Editorial Fundamentos.

Chicago Style (17th ed.) Citation

Sagrera, Martín. Population Crisis: [world Population Inflation ...]. Madrid: Editorial Fundamentos, 1994.

MLA引文

Sagrera, Martín. Population Crisis: [world Population Inflation ...]. Editorial Fundamentos, 1994.

警告：這些引文格式不一定是100％准確.