Lua APA (7ú heag.)

DIXON, F. (1970). THE HARDY BOYS: THE CRISSCROSS SHADOW. GROSSET & DUNLAP.

Lua i Stíl Chicago (17ú heag.)

DIXON, FRANKLIN.W. THE HARDY BOYS: THE CRISSCROSS SHADOW. USA: GROSSET & DUNLAP, 1970.

Lua MLA (9ú heag.)

DIXON, FRANKLIN.W. THE HARDY BOYS: THE CRISSCROSS SHADOW. GROSSET & DUNLAP, 1970.

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