Cita APA (7a ed.)

Cappa, C. E., & Pöppel, W. G. L. (1988). Observations of the dark cloud in Corona Austrina at 1667 MHz.

Cita Chicago Style (17a ed.)

Cappa, Cristina Elisabet, y Wolfgang G. L. Pöppel. Observations of the Dark Cloud in Corona Austrina at 1667 MHz. 1988.

Cita MLA (8a ed.)

Cappa, Cristina Elisabet, y Wolfgang G. L. Pöppel. Observations of the Dark Cloud in Corona Austrina at 1667 MHz. 1988.