APA   Click to copy
Villastrigo, A., Ribera, I., Manuel, M., Millán, A., & Fery, H. (2017). A new classification of the tribe Hygrotini Portevin, 1929 (Coleoptera: Dytiscidae: Hydroporinae). Zootaxa, 4317, 499–529.

Chicago/Turabian   Click to copy
Villastrigo, Adrian, Ignacio Ribera, Michaël Manuel, Andrés Millán, and Hans Fery. “A New Classification of the Tribe Hygrotini Portevin, 1929 (Coleoptera: Dytiscidae: Hydroporinae).” Zootaxa 4317 (2017): 499–529.

MLA   Click to copy
Villastrigo, Adrian, et al. “A New Classification of the Tribe Hygrotini Portevin, 1929 (Coleoptera: Dytiscidae: Hydroporinae).” Zootaxa, vol. 4317, 2017, pp. 499–529.

@article{villastrigo2017a,
  title = {A new classification of the tribe Hygrotini Portevin, 1929 (Coleoptera: Dytiscidae: Hydroporinae)},
  year = {2017},
  journal = {Zootaxa},
  pages = {499--529},
  volume = {4317},
  author = {Villastrigo, Adrian and Ribera, Ignacio and Manuel, Michaël and Millán, Andrés and Fery, Hans}
}