Cita APA (7th ed.)

Simpson, R., Johnstone, D., Nutter, D., Ward-Thompson, D., & Whitworth, A. (2011). The initial conditions of isolated star formation - X. A suggested evolutionary diagram for pre-stellar cores.

Cita Chicago (17th ed.)

Simpson, R., D. Johnstone, D. Nutter, D. Ward-Thompson, i A. Whitworth. The Initial Conditions of Isolated Star Formation - X. A Suggested Evolutionary Diagram for Pre-stellar Cores. 2011.

Cita MLA (9th ed.)

Simpson, R., et al. The Initial Conditions of Isolated Star Formation - X. A Suggested Evolutionary Diagram for Pre-stellar Cores. 2011.