The following is a bit of a hodgepodge. 

Post 1291 recovery treatises

William of Adam

William of Adam. How to defeat the Saracens (Tractatus quomodo Sarraceni sunt expugnandi) / Guillelmus Ade ; text and translation with notes by Giles Constable ; in collaboration with Ranabir Chakravarti … [et al.]. Washington, D.C. : Dumbarton Oaks Research Library and Collection, c2012.

Pierre Dubois

Pierre Dubois. The recovery of the Holy Land. Translated by Walther Immanuel Brandt. Edited by Walther Immanuel Brandt, Records of civilization: sources and studies 51. New York,: Columbia University Press, 1956.

Guillaume de Machaut

The Capture of Alexandria, trans. Janet Shirley, introduction and notes by Peter Edbury (Rogers). Ashgate, Aldershot, 2001.

Peter von Dusburg — The Douglass goes on crusade, 1329

Translation found in Helen Nicholson, The Crusades. Westport: Conn, Greenwood Press: 2004.

Marino Sanudo,

Liber secretorum fielium crucis

Latin: Liber secretorum fidelium crucis super Terrae Sanctae recuperatione et conservatione. Original edition 1611. Reprint 1972.

Translation: The book of the secrets of the faithful of the cross. Translated by Peter Lock. Ashgate 2001.

Hussite Crusades

The crusade against heretics in Bohemia, 1418-1437 : sources and documents for the Hussite crusades. Edited by Thomas A. Fudge. Ashgate 2002

Jean le Bel — The second crusade against the Husites, September 1421.  Translation found in Helen Nicholson, The Crusades. Westport: Conn, Greenwood Press: 2004.

Nicholaus von Jeroschin

The chronicle of Prussia: a history of the Teutonic Knights in Prussia, 1190-1331, translated by Mary Fischer.  Ashgate: 2010

Crusading Against the Ottomans

John Kaye’s 1482 translation of Guillaume Caoursin’s eyewitness account of the 1480 siege of Rhodes by the Ottoman Turks.  Translation found in Helen Nicholson, The Crusades. Westport: Conn, Greenwood Press: 2004.

Varna

The Crusade of Varna, 1443-45. Colin Imber. Aldershot, Ashgate 2006