Range Justice (1960)
The Rimfire Murders (1962) (writing as Frank O'Brian)
Seven Brave Men (1962)
The Lawbringers (1963)
The Last Bridge (1966)
The Lusty Breed (1966)
Big Country, Big Men (1969)
The Hit (1970)
The Villiers Touch (1970)
What of Terry Conniston? (1971)
Deep Cover (1971)
Death Wish (1972)
Relentless (1972)
Line Of Succession (1972)
Gangway (1973) (with Donald E Westlake)
Tripwire (1973)
The Romanov Succession (1974)
Kolchak's Gold (1974)
The Threepersons Hunt (1974)
Target Manhattan (1975) (writing as Drew Mallory)
Death Sentence (1975)
Hopscotch (1975)
The Last Hard Men (1976)
Recoil (1977)
Fear in a Handful of Dust (1977) (writing as John Ives)
     aka Fear
Wild Times (1978)
The Marchand Woman (1979) (writing as John Ives)
Sliphammer (1979)
Sweeney's Honor (1980)
Arizona (1980)
The Paladin: A Novel Based On Fact (1980)
The Vanquished (1982)
Valley of the Shadow (1983)
Necessity (1984)
Bugle and the Spur (1986)
Apache Canyon (1986)
The Arizonans (1987)
Vultures in the Sun (1987)
Manifest Destiny (1989)

Devil's Butte / Badge for a Badman (1967) (with Ray Hogan)
Danger Money / Romanov Succession / Horn of Roland (1974) (with Mignon Good Eberhart and Ellis Peters)
Etruscan Smile / Slippery Step / Recoil (1976) (with Rae Foley and Velda Johnson)
The Hit / The Marksman (2004)

Rivers to Cross: A Collection of Stories By Members of Western Writers of America (1966) (with S Omar Barker, D D Beauchamp, Tom W Blackburn, William R Cox, Max Evans, Kenneth Fowler, Norman S Hall, Ernest Haycox and Lewis B Patten)
Checkpoint Charlie (1981)