APA

Peña M., Kwitter K. B., Méndez R. H., Stanghellini L., Corradi R. L. M., De Marco O., Fang X. & Henry R. B. C.The present and future of planetary nebula research. A white paper by the IAU planetary nebula working group. : .

Chicago

Peña M, Kwitter K B, Méndez R H, Stanghellini L, Corradi R L M, De Marco O, Fang Xuang and Henry R B C.The present and future of planetary nebula research. A white paper by the IAU planetary nebula working group. : .

Harvard

Peña M., Kwitter K. B., Méndez R. H., Stanghellini L., Corradi R. L. M., De Marco O., Fang X. and Henry R. B. C.The present and future of planetary nebula research. A white paper by the IAU planetary nebula working group. : .

MLA

Peña M, Kwitter K B, Méndez R H, Stanghellini L, Corradi R L M, De Marco O, Fang Xuang and Henry R B C.: . .