APA (7th ed.) Citation

Brandner, W., & Grebel, E. K. (1997). The hourglass nebulae of Sher 25 and SN 1987 A: Two of a kind? The astrophysical journal. Part 2, Letters, 489(2), . https://doi.org/10.1086/316795

Chicago Style (17th ed.) Citation

Brandner, Wolfgang, and Eva K. Grebel. "The Hourglass Nebulae of Sher 25 and SN 1987 A: Two of a Kind?" The Astrophysical Journal. Part 2, Letters 489, no. 2 (1997). https://doi.org/10.1086/316795.

MLA (9th ed.) Citation

Brandner, Wolfgang, and Eva K. Grebel. "The Hourglass Nebulae of Sher 25 and SN 1987 A: Two of a Kind?" The Astrophysical Journal. Part 2, Letters, vol. 489, no. 2, 1997, https://doi.org/10.1086/316795.