Novels:
- "El Limonero Real" (The Royal Lemon Tree, 1974)
- "La Cabeza" (The Head, 1975)
- "La Prueba" (The Test, 1980)
- "El Jardín de las Delicias" (The Garden of Delights, 1982)
- "El Libro de la Noche" (The Book of the Night, 1985)
- "El Sueño de la Serpiente" (The Dream of the Snake, 1987)
Short Stories:
- "Cuentos de la Selva" (Tales of the Jungle, 1968)
- "La Muerte del Jaguar" (The Death of the Jaguar, 1971)
- "El Hombre que Amaba a los Árboles" (The Man who Loved Trees, 1973)
- "El Camino de los Pájaros" (The Path of the Birds, 1981)
- "El Silencio de la Tierra" (The Silence of the Earth, 1984)
Non-Fiction:
- "El Mundo de los Animales" (The World of Animals, 1969)
- "La Naturaleza de la Vida" (The Nature of Life, 1972)
- "El Misterio de la Muerte" (The Mystery of Death, 1976)
- "La Realidad de Dios" (The Reality of God, 1986)
- "La Búsqueda de la Felicidad" (The Search for Happiness, 1989)
Silveyra's writing is known for its vivid imagery, deep philosophical insights, and exploration of themes such as nature, spirituality, and the human condition.