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Valdez, il mezzosangue (1973) Screenplay |
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La spina dorsale del diavolo (1970) Screenplay |
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La spina dorsale del diavolo (1970) Adaptation |
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Flap (1970) Novel |
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Flap (1970) Screenplay |
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100 Rifles (1969) Screenplay |
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Hellfighters (1968) Screenplay |
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The War Wagon (1967) Screenplay |
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The War Wagon (1967) Novel |
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Tarzan and the Valley of Gold (1966) Screenplay |
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Rio Conchos (1964) Screenplay |
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Rio Conchos (1964) Novel |
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The Second Time Around (1961) Screenplay |
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The Comancheros (1961) Screenplay |
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Posse from Hell (1961) Screenplay |
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Posse from Hell (1961) Novel |
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Flaming Star (1960) Screenplay |
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Flaming Star (1960) Novel |
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Seven Ways from Sundown (1960) Novel |
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Seven Ways from Sundown (1960) Screenplay |