The book of Haggai.

Counted among the prophets.

Attributed author(s).
Haggai.

Text(s) available.
None on site.
CCEL: Haggai (Hebrew only).
Swete LXX (Greek only).
Bible Gateway (English only).
HTML Bible: Haggai 1, 2 (Hebrew and English).
HTML Bible: Haggai 1, 2 (Latin Vulgate only).
Zhubert (Greek and English).
Kata Pi BHS: Haggai 1, 2 (Hebrew and English).
Kata Pi LXX: Haggai 1, 2 (Greek and English).
Sacred Texts: Haggai 1, 2 (polyglot).

Useful links.
Haggai at the OT Gateway.
Haggai in the Jewish Encyclopedia.
Haggai at Kata Pi (Oesterly and Robinson).
Haggai from the Plymouth Brethren.

The book of Haggai ranks among the latter prophets in the Jewish scriptures.

The book was originally written in Hebrew, but the ancient Greek translation known as the Septuagint (abbreviated LXX) is also a very important witness to the text.