Cita APA (7th ed.)

খবরিং, জ. (1992). Life: Beginnings of life, animal life, plant life, evolution of life, behavior and ecology of life. Wm. C. Brown Publishers.

Cita Chicago (17th ed.)

খবরিং, জরপশর. Life: Beginnings of Life, Animal Life, Plant Life, Evolution of Life, Behavior and Ecology of Life. Dubuque, IA: Wm. C. Brown Publishers, 1992.

Cita MLA (9th ed.)

খবরিং, জরপশর. Life: Beginnings of Life, Animal Life, Plant Life, Evolution of Life, Behavior and Ecology of Life. Wm. C. Brown Publishers, 1992.