#30 The Secret of Shark Reef
By William Arden (Dennis Lynds), 1979
Scholastic Book Services Paperback Edition
First Printed: December 1981
Cover Art: Charles Liese
Internal Illustrations: None
ISBN: 0-590-31567-6
First Printing Identifier: 12 11 10 9 8 7 6 5 4 3 2 1 numberline on the copyright page.
Random House Revised Paperback Edition
"Keyhole Cover"
First Printed: 1985
Cover Art: Robert Adragna
Internal Illustrations: None
ISBN: 0-394-86430-1
First Printing Identifier: 1234567890 numberline on the copyright page.
Random House First Paperback Edition
"Hitchcock Cover"
First Printed: 1979
Cover Art: Robert Adragna
Internal Illustrations: None
ISBN: 0-394-84249-9
First Printing Identifier: 1234567890 numberline on the copyright page.
Random House GLB Hardbound Edition
First Printed: 1979
Cover Art: Robert Adragna
Internal Illustrations: None
ISBN: 0-394-94249-3
First Printing Identifier: 1234567890 numberline on the copyright page.
Notes: This was the last title to feature Alfred Hitchcock - he died in 1980.