Lua APA (7ú heag.)

PFEIFFER J WILLIAM. (1993). THE 1993 ANNUAL: DEVELOPING HUMAN RESOURCES. PFEIFFER.

Lua i Stíl Chicago (17ú heag.)

PFEIFFER J WILLIAM. THE 1993 ANNUAL: DEVELOPING HUMAN RESOURCES. LONDON: PFEIFFER, 1993.

Lua MLA (9ú heag.)

PFEIFFER J WILLIAM. THE 1993 ANNUAL: DEVELOPING HUMAN RESOURCES. PFEIFFER, 1993.

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