BibTeX:
@incollection{AdibTaherzadeh1974,
  author = {Adib Taherzadeh},
  title = {The Last Naw-Rúz in Baghdád},
  booktitle = {The Revelation of Bahá'u'lláh, Vol. 1: Baghdád 1853-63},
  year = {1974},
  publisher = {George Ronald},
}

APA:
Adib Taherzadeh. (1974). The Last Naw-Rúz in Baghdád. In *The Revelation of Bahá'u'lláh, Vol. 1: Baghdád 1853-63*. George Ronald.

MLA:
Adib Taherzadeh. "The Last Naw-Rúz in Baghdád." *The Revelation of Bahá'u'lláh, Vol. 1: Baghdád 1853-63*, George Ronald, 1974.

Chicago:
Adib Taherzadeh. "The Last Naw-Rúz in Baghdád." In *The Revelation of Bahá'u'lláh, Vol. 1: Baghdád 1853-63*, George Ronald, 1974.