Gilbert, P. W. (1967). Sharks,skates and rays.
Chicago Edition CitationGilbert, Perry W. Sharks,skates and Rays. 1967.
ציטוט MLAGilbert, Perry W. Sharks,skates and Rays. 1967.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.
Gilbert, P. W. (1967). Sharks,skates and rays.
Chicago Edition CitationGilbert, Perry W. Sharks,skates and Rays. 1967.
ציטוט MLAGilbert, Perry W. Sharks,skates and Rays. 1967.